diff --git a/core/dialog_export.cpp b/core/dialog_export.cpp
index 73d0ae013..7285f1ad1 100644
--- a/core/dialog_export.cpp
+++ b/core/dialog_export.cpp
@@ -182,7 +182,7 @@ END_EVENT_TABLE()
 // Process start
 void DialogExport::OnProcess(wxCommandEvent &event) {
 	// Get destination
-	wxString filename = wxFileSelector(_("Export subtitles file"),_T(""),_T(""),_T(""),_T("All Supported Types (*.ass,*.ssa,*.srt,*.prs)|*.ass;*.ssa;*.srt;*.prs|Advanced Substation Alpha (*.ass)|*.ass|Substation Alpha (*.ssa)|*.ssa|SubRip (*.srt)|*.srt|Pre-Rendered Subtitles (*.prs)|*.prs"),wxSAVE | wxOVERWRITE_PROMPT);
+	wxString filename = wxFileSelector(_("Export subtitles file"),_T(""),_T(""),_T(""),_T("All Supported Types (*.ass,*.ssa,*.srt,*.prs)|*.ass;*.ssa;*.srt;*.prs|Advanced Substation Alpha (*.ass)|*.ass|Substation Alpha (*.ssa)|*.ssa|SubRip (*.srt)|*.srt|Pre-Rendered Subtitles (*.prs)|*.prs"),wxSAVE | wxOVERWRITE_PROMPT,this);
 	if (filename.empty()) return;
 
 	// Add filters
diff --git a/core/subtitle_format_srt.cpp b/core/subtitle_format_srt.cpp
index 75a6c2bc2..547c879b4 100644
--- a/core/subtitle_format_srt.cpp
+++ b/core/subtitle_format_srt.cpp
@@ -200,12 +200,13 @@ void SRTSubtitleFormat::DialogueToSRT(AssDialogue *current,std::list<AssEntry*>:
 // Converts whole file to SRT
 void SRTSubtitleFormat::ConvertToSRT () {
 	using std::list;
-	list<AssEntry*>::iterator next;
-	list<AssEntry*>::iterator prev = Line->end();
 
 	// Sort lines
 	Line->sort(LessByPointedToValue<AssEntry>());
 
+	list<AssEntry*>::iterator next;
+	list<AssEntry*>::iterator prev = Line->end();
+
 	// Process lines
 	bool notfirst = false;
 	for (list<AssEntry*>::iterator cur=Line->begin();cur!=Line->end();cur=next) {
diff --git a/core/vfr.cpp b/core/vfr.cpp
index 9775bccbf..b7489a1a0 100644
--- a/core/vfr.cpp
+++ b/core/vfr.cpp
@@ -278,7 +278,7 @@ int FrameRate::PFrameAtTime(int ms,bool useceil) {
 
 	// Get for constant frame rate
 	if (FrameRateType == CFR) {
-		double value = double(ms)/1000.0 * AverageFrameRate;
+		double value = double(ms) * AverageFrameRate / 1000.0;
 		if (useceil) return ceil(value);
 		else return floor(value);
 	}