Thanks for your bug report
I just fixed it:
DirectSound.cpp:
dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2|DSBCAPS_CTRLPOSITIONNO TIFY|DSBCAPS_GLOBALFOCUS;
the last flag was not set.
To the save issue:
I did not add the vba-over.ini suport in my build, because I thought it would not be needed. Moreover I removed the choice between 64k and 128k saves, because I thought auto-detect could do this by hisself.
Guess I was wrong.
I will have a look at that as soon as my broken glasses are replaced /O.O\
EDIT:
I just finished completing the hq3x and hq4x filters, including 16bit.
Do not see it as a WIP but just as a little test build.
Next version shall be a prerelease or a final.