diff --git a/src/DSi_NAND.cpp b/src/DSi_NAND.cpp
index 58a0d278..304ede89 100644
--- a/src/DSi_NAND.cpp
+++ b/src/DSi_NAND.cpp
@@ -509,22 +509,25 @@ void debug_listfiles(const char* path)
     f_closedir(&dir);
 }
 
-void DumpFile(const char* path, const char* out)
+bool ImportFile(const char* path, const char* in)
 {
     FIL file;
-    FILE* fout;
+    FILE* fin;
     FRESULT res;
 
-    res = f_open(&file, path, FA_OPEN_EXISTING | FA_READ);
-    if (res != FR_OK) return;
+    fin = fopen(in, "rb");
+    if (!fin)
+        return false;
 
-    u32 len = f_size(&file);
+    fseek(fin, 0, SEEK_END);
+    u32 len = (u32)ftell(fin);
+    fseek(fin, 0, SEEK_SET);
 
-    fout = fopen(out, "wb");
-    if (!fout)
+    res = f_open(&file, path, FA_CREATE_ALWAYS | FA_WRITE);
+    if (res != FR_OK)
     {
-        f_close(&file);
-        return;
+        fclose(fin);
+        return false;
     }
 
     u8 buf[0x200];
@@ -536,13 +539,54 @@ void DumpFile(const char* path, const char* out)
         else
             blocklen = 0x200;
 
-        u32 burp;
-        f_read(&file, buf, blocklen, &burp);
+        u32 nwrite;
+        fread(buf, blocklen, 1, fin);
+        f_write(&file, buf, blocklen, &nwrite);
+    }
+
+    fclose(fin);
+    f_close(&file);
+
+    return true;
+}
+
+bool ExportFile(const char* path, const char* out)
+{
+    FIL file;
+    FILE* fout;
+    FRESULT res;
+
+    res = f_open(&file, path, FA_OPEN_EXISTING | FA_READ);
+    if (res != FR_OK)
+        return false;
+
+    u32 len = f_size(&file);
+
+    fout = fopen(out, "wb");
+    if (!fout)
+    {
+        f_close(&file);
+        return false;
+    }
+
+    u8 buf[0x200];
+    for (u32 i = 0; i < len; i += 0x200)
+    {
+        u32 blocklen;
+        if ((i + 0x200) > len)
+            blocklen = len - i;
+        else
+            blocklen = 0x200;
+
+        u32 nread;
+        f_read(&file, buf, blocklen, &nread);
         fwrite(buf, blocklen, 1, fout);
     }
 
     fclose(fout);
     f_close(&file);
+
+    return true;
 }
 
 void RemoveFile(const char* path)
@@ -692,6 +736,9 @@ bool TitleExists(u32 category, u32 titleid)
 void GetTitleInfo(u32 category, u32 titleid, u32& version, u8* header, u8* banner)
 {
     version = GetTitleVersion(category, titleid);
+    if (version == 0xFFFFFFFF)
+        return;
+
     FRESULT res;
 
     char path[256];
@@ -704,15 +751,18 @@ void GetTitleInfo(u32 category, u32 titleid, u32& version, u8* header, u8* banne
     u32 nread;
     f_read(&file, header, 0x1000, &nread);
 
-    u32 banneraddr = *(u32*)&header[0x68];
-    if (!banneraddr)
+    if (banner)
     {
-        memset(banner, 0, 0x2400);
-    }
-    else
-    {
-        f_lseek(&file, banneraddr);
-        f_read(&file, banner, 0x2400, &nread);
+        u32 banneraddr = *(u32*)&header[0x68];
+        if (!banneraddr)
+        {
+            memset(banner, 0, 0x2400);
+        }
+        else
+        {
+            f_lseek(&file, banneraddr);
+            f_read(&file, banner, 0x2400, &nread);
+        }
     }
 
     f_close(&file);
@@ -916,29 +966,12 @@ bool ImportTitle(const char* appfile, u8* tmd, bool readonly)
     // executable
 
     sprintf(fname, "0:/title/%08x/%08x/content/%08x.app", titleid0, titleid1, version);
-    res = f_open(&file, fname, FA_CREATE_ALWAYS | FA_WRITE);
-    if (res != FR_OK)
+    if (!ImportFile(fname, appfile))
     {
         printf("ImportTitle: failed to create executable (%d)\n", res);
         return false;
     }
 
-    FILE* app = fopen(appfile, "rb");
-    fseek(app, 0, SEEK_END);
-    u32 applen = (u32)ftell(app);
-    fseek(app, 0, SEEK_SET);
-
-    for (u32 i = 0; i < applen; i += 0x200)
-    {
-        u8 data[0x200];
-
-        u32 lenread = fread(data, 1, 0x200, app);
-        f_write(&file, data, lenread, &nwrite);
-    }
-
-    fclose(app);
-    f_close(&file);
-
     if (readonly) f_chmod(fname, AM_RDO, AM_RDO);
 
     return true;
@@ -955,4 +988,72 @@ void DeleteTitle(u32 category, u32 titleid)
     RemoveDir(fname);
 }
 
+u32 GetTitleDataMask(u32 category, u32 titleid)
+{
+    u32 version;
+    u8 header[0x1000];
+
+    GetTitleInfo(category, titleid, version, header, nullptr);
+    if (version == 0xFFFFFFFF)
+        return 0;
+
+    u32 ret = 0;
+    if (*(u32*)&header[0x238] != 0) ret |= (1 << TitleData_PublicSav);
+    if (*(u32*)&header[0x23C] != 0) ret |= (1 << TitleData_PrivateSav);
+    if (header[0x1BF] & 0x04)       ret |= (1 << TitleData_BannerSav);
+
+    return ret;
+}
+
+bool ImportTitleData(u32 category, u32 titleid, int type, const char* file)
+{
+    char fname[128];
+
+    switch (type)
+    {
+    case TitleData_PublicSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/public.sav", category, titleid);
+        break;
+
+    case TitleData_PrivateSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/private.sav", category, titleid);
+        break;
+
+    case TitleData_BannerSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/banner.sav", category, titleid);
+        break;
+
+    default:
+        return false;
+    }
+
+    RemoveFile(fname);
+    return ImportFile(fname, file);
+}
+
+bool ExportTitleData(u32 category, u32 titleid, int type, const char* file)
+{
+    char fname[128];
+
+    switch (type)
+    {
+    case TitleData_PublicSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/public.sav", category, titleid);
+        break;
+
+    case TitleData_PrivateSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/private.sav", category, titleid);
+        break;
+
+    case TitleData_BannerSav:
+        sprintf(fname, "0:/title/%08x/%08x/data/banner.sav", category, titleid);
+        break;
+
+    default:
+        return false;
+    }
+
+    return ExportFile(fname, file);
+}
+
 }
diff --git a/src/DSi_NAND.h b/src/DSi_NAND.h
index 41898928..fbd75934 100644
--- a/src/DSi_NAND.h
+++ b/src/DSi_NAND.h
@@ -26,6 +26,13 @@
 namespace DSi_NAND
 {
 
+enum
+{
+    TitleData_PublicSav,
+    TitleData_PrivateSav,
+    TitleData_BannerSav,
+};
+
 bool Init(FILE* nand, u8* es_keyY);
 void DeInit();
 
@@ -39,6 +46,10 @@ void GetTitleInfo(u32 category, u32 titleid, u32& version, u8* header, u8* banne
 bool ImportTitle(const char* appfile, u8* tmd, bool readonly);
 void DeleteTitle(u32 category, u32 titleid);
 
+u32 GetTitleDataMask(u32 category, u32 titleid);
+bool ImportTitleData(u32 category, u32 titleid, int type, const char* file);
+bool ExportTitleData(u32 category, u32 titleid, int type, const char* file);
+
 }
 
 #endif // DSI_NAND_H
diff --git a/src/frontend/qt_sdl/TitleImportDialog.ui b/src/frontend/qt_sdl/TitleImportDialog.ui
index 4fa78cab..ca2010b6 100644
--- a/src/frontend/qt_sdl/TitleImportDialog.ui
+++ b/src/frontend/qt_sdl/TitleImportDialog.ui
@@ -94,6 +94,9 @@
    </item>
    <item row="6" column="0" colspan="3">
     <widget class="QCheckBox" name="cbReadOnly">
+     <property name="whatsThis">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Makes the title executable and TMD read-only. Prevents DSi system utilities from deleting them.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Make title files read-only</string>
      </property>
diff --git a/src/frontend/qt_sdl/TitleManagerDialog.cpp b/src/frontend/qt_sdl/TitleManagerDialog.cpp
index ff0cec34..117b8b94 100644
--- a/src/frontend/qt_sdl/TitleManagerDialog.cpp
+++ b/src/frontend/qt_sdl/TitleManagerDialog.cpp
@@ -18,6 +18,7 @@
 
 #include <stdio.h>
 #include <QFileDialog>
+#include <QMenu>
 
 #include "types.h"
 #include "Platform.h"
@@ -59,6 +60,42 @@ TitleManagerDialog::TitleManagerDialog(QWidget* parent) : QDialog(parent), ui(ne
     ui->btnImportTitleData->setEnabled(false);
     ui->btnExportTitleData->setEnabled(false);
     ui->btnDeleteTitle->setEnabled(false);
+
+    {
+        QMenu* menu = new QMenu(ui->btnImportTitleData);
+
+        actImportTitleData[0] = menu->addAction("public.sav");
+        actImportTitleData[0]->setData(QVariant(DSi_NAND::TitleData_PublicSav));
+        connect(actImportTitleData[0], &QAction::triggered, this, &TitleManagerDialog::onImportTitleData);
+
+        actImportTitleData[1] = menu->addAction("private.sav");
+        actImportTitleData[1]->setData(QVariant(DSi_NAND::TitleData_PrivateSav));
+        connect(actImportTitleData[1], &QAction::triggered, this, &TitleManagerDialog::onImportTitleData);
+
+        actImportTitleData[2] = menu->addAction("banner.sav");
+        actImportTitleData[2]->setData(QVariant(DSi_NAND::TitleData_BannerSav));
+        connect(actImportTitleData[2], &QAction::triggered, this, &TitleManagerDialog::onImportTitleData);
+
+        ui->btnImportTitleData->setMenu(menu);
+    }
+
+    {
+        QMenu* menu = new QMenu(ui->btnExportTitleData);
+
+        actExportTitleData[0] = menu->addAction("public.sav");
+        actExportTitleData[0]->setData(QVariant(DSi_NAND::TitleData_PublicSav));
+        connect(actExportTitleData[0], &QAction::triggered, this, &TitleManagerDialog::onExportTitleData);
+
+        actExportTitleData[1] = menu->addAction("private.sav");
+        actExportTitleData[1]->setData(QVariant(DSi_NAND::TitleData_PrivateSav));
+        connect(actExportTitleData[1], &QAction::triggered, this, &TitleManagerDialog::onExportTitleData);
+
+        actExportTitleData[2] = menu->addAction("banner.sav");
+        actExportTitleData[2]->setData(QVariant(DSi_NAND::TitleData_BannerSav));
+        connect(actExportTitleData[2], &QAction::triggered, this, &TitleManagerDialog::onExportTitleData);
+
+        ui->btnExportTitleData->setMenu(menu);
+    }
 }
 
 TitleManagerDialog::~TitleManagerDialog()
@@ -99,6 +136,9 @@ void TitleManagerDialog::createTitleItem(u32 category, u32 titleid)
     QListWidgetItem* item = new QListWidgetItem(title + QString(extra));
     item->setIcon(icon);
     item->setData(Qt::UserRole, (((u64)category<<32) | (u64)titleid));
+    item->setData(Qt::UserRole+1, *(u32*)&header[0x238]); // public.sav size
+    item->setData(Qt::UserRole+2, *(u32*)&header[0x23C]); // private.sav size
+    item->setData(Qt::UserRole+3, (u32)((header[0x1BF] & 0x04) ? 0x4000 : 0)); // banner.sav size
     ui->lstTitleList->addItem(item);
 }
 
@@ -183,16 +223,6 @@ void TitleManagerDialog::onImportTitleFinished(int res)
     }
 }
 
-void TitleManagerDialog::on_btnImportTitleData_clicked()
-{
-    //
-}
-
-void TitleManagerDialog::on_btnExportTitleData_clicked()
-{
-    //
-}
-
 void TitleManagerDialog::on_btnDeleteTitle_clicked()
 {
     QListWidgetItem* cur = ui->lstTitleList->currentItem();
@@ -205,7 +235,7 @@ void TitleManagerDialog::on_btnDeleteTitle_clicked()
                               QMessageBox::No) != QMessageBox::Yes)
         return;
 
-    u64 titleid = cur->data(Qt::UserRole).toLongLong();
+    u64 titleid = cur->data(Qt::UserRole).toULongLong();
     DSi_NAND::DeleteTitle((u32)(titleid >> 32), (u32)titleid);
 
     delete cur;
@@ -225,7 +255,125 @@ void TitleManagerDialog::on_lstTitleList_currentItemChanged(QListWidgetItem* cur
         ui->btnExportTitleData->setEnabled(true);
         ui->btnDeleteTitle->setEnabled(true);
 
-        //
+        u32 val;
+        val = cur->data(Qt::UserRole+1).toUInt();
+        actImportTitleData[0]->setEnabled(val != 0);
+        actExportTitleData[0]->setEnabled(val != 0);
+        val = cur->data(Qt::UserRole+2).toUInt();
+        actImportTitleData[1]->setEnabled(val != 0);
+        actExportTitleData[1]->setEnabled(val != 0);
+        val = cur->data(Qt::UserRole+3).toUInt();
+        actImportTitleData[2]->setEnabled(val != 0);
+        actExportTitleData[2]->setEnabled(val != 0);
+    }
+}
+
+void TitleManagerDialog::onImportTitleData()
+{
+    int type = ((QAction*)sender())->data().toInt();
+
+    QListWidgetItem* cur = ui->lstTitleList->currentItem();
+    if (!cur)
+    {
+        printf("what??\n");
+        return;
+    }
+
+    u32 wantedsize;
+    switch (type)
+    {
+    case DSi_NAND::TitleData_PublicSav:  wantedsize = cur->data(Qt::UserRole+1).toUInt(); break;
+    case DSi_NAND::TitleData_PrivateSav: wantedsize = cur->data(Qt::UserRole+2).toUInt(); break;
+    case DSi_NAND::TitleData_BannerSav:  wantedsize = cur->data(Qt::UserRole+3).toUInt(); break;
+    default:
+        printf("what??\n");
+        return;
+    }
+
+    QString file = QFileDialog::getOpenFileName(this,
+                                                "Select file to import...",
+                                                EmuDirectory,
+                                                "Title data files (*.sav);;Any file (*.*)");
+
+    if (file.isEmpty()) return;
+
+    FILE* f = fopen(file.toStdString().c_str(), "rb");
+    if (!f)
+    {
+        QMessageBox::critical(this,
+                              "Import title data - melonDS",
+                              "Could not open data file.\nCheck that the file is accessible.");
+        return;
+    }
+
+    fseek(f, 0, SEEK_END);
+    u64 len = ftell(f);
+    fclose(f);
+
+    if (len != wantedsize)
+    {
+        QMessageBox::critical(this,
+                              "Import title data - melonDS",
+                              QString("Cannot import this data file: size is incorrect (expected: %1 bytes).").arg(wantedsize));
+        return;
+    }
+
+    u64 titleid = cur->data(Qt::UserRole).toULongLong();
+    bool res = DSi_NAND::ImportTitleData((u32)(titleid >> 32), (u32)titleid, type, file.toStdString().c_str());
+    if (!res)
+    {
+        QMessageBox::critical(this,
+                              "Import title data - melonDS",
+                              "Failed to import the data file. Check that your NAND is accessible and valid.");
+    }
+}
+
+void TitleManagerDialog::onExportTitleData()
+{
+    int type = ((QAction*)sender())->data().toInt();
+
+    QListWidgetItem* cur = ui->lstTitleList->currentItem();
+    if (!cur)
+    {
+        printf("what??\n");
+        return;
+    }
+
+    QString exportname;
+    u32 wantedsize;
+    switch (type)
+    {
+    case DSi_NAND::TitleData_PublicSav:
+        exportname = "/public.sav";
+        wantedsize = cur->data(Qt::UserRole+1).toUInt();
+        break;
+    case DSi_NAND::TitleData_PrivateSav:
+        exportname = "/private.sav";
+        wantedsize = cur->data(Qt::UserRole+2).toUInt();
+        break;
+    case DSi_NAND::TitleData_BannerSav:
+        exportname = "/banner.sav";
+        wantedsize = cur->data(Qt::UserRole+3).toUInt();
+        break;
+    default:
+        printf("what??\n");
+        return;
+    }
+
+    QString file = QFileDialog::getSaveFileName(this,
+                                                "Select path to export to...",
+                                                QString(EmuDirectory) + exportname,
+                                                "Title data files (*.sav);;Any file (*.*)");
+
+    if (file.isEmpty()) return;
+
+    u64 titleid = cur->data(Qt::UserRole).toULongLong();
+    bool res = DSi_NAND::ExportTitleData((u32)(titleid >> 32), (u32)titleid, type, file.toStdString().c_str());
+    if (!res)
+    {
+        QMessageBox::critical(this,
+                              "Export title data - melonDS",
+                              "Failed to Export the data file. Check that the destination directory is writable.");
     }
 }
 
diff --git a/src/frontend/qt_sdl/TitleManagerDialog.h b/src/frontend/qt_sdl/TitleManagerDialog.h
index e0f80cb8..682362ab 100644
--- a/src/frontend/qt_sdl/TitleManagerDialog.h
+++ b/src/frontend/qt_sdl/TitleManagerDialog.h
@@ -81,10 +81,10 @@ private slots:
 
     void on_btnImportTitle_clicked();
     void onImportTitleFinished(int res);
-    void on_btnImportTitleData_clicked();
-    void on_btnExportTitleData_clicked();
     void on_btnDeleteTitle_clicked();
     void on_lstTitleList_currentItemChanged(QListWidgetItem* cur, QListWidgetItem* prev);
+    void onImportTitleData();
+    void onExportTitleData();
 
 private:
     Ui::TitleManagerDialog* ui;
@@ -93,8 +93,8 @@ private:
     u8 importTmdData[0x208];
     bool importReadOnly;
 
-    QAction* importAction[3];
-    QAction* exportAction[3];
+    QAction* actImportTitleData[3];
+    QAction* actExportTitleData[3];
 
     void createTitleItem(u32 category, u32 titleid);
 };
diff --git a/src/frontend/qt_sdl/TitleManagerDialog.ui b/src/frontend/qt_sdl/TitleManagerDialog.ui
index 3d177d72..be52752d 100644
--- a/src/frontend/qt_sdl/TitleManagerDialog.ui
+++ b/src/frontend/qt_sdl/TitleManagerDialog.ui
@@ -44,7 +44,7 @@
         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Import data (save, banner...) for the selected title.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
        </property>
        <property name="text">
-        <string>Import title data...</string>
+        <string>Import title data</string>
        </property>
       </widget>
      </item>
@@ -54,7 +54,7 @@
         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Export the data (save, banner...) associated with the selected title.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
        </property>
        <property name="text">
-        <string>Export title data...</string>
+        <string>Export title data</string>
        </property>
       </widget>
      </item>