If one was to delete all sfk and sfl files would that adversly affect the normal operation of Vegas Pro. I have many many many of them did I mention that I have MANY some current some old. Please Help me clean the clutter....
.sfk files contain the image of the waveform you see on the audio track. If you delete them, Vegas/ACID/SoundForge/DVDA/CDA, etc. will recreate them the next time you use the file.
.sfl files contain metadata, like markers and regions, for those files that can't contain them natively, such as MPEG. If you rendered to MPEG with markers to import into DVDA and have the markers become chapters then you'll lose the markers if you delete the .sfl file.
Of course, if you've already deleted the associated media file that goes along with the .sfk or .sfl files then there's no reason to keep them around.
Not currently. They will always be created in the same directory as the associated media file. This is actually a good thing. If you had them all going to some other directory then you would risk overwriting them with other files of the same name. Vegas wouldn't detect the problem and would show you the wrong waveform on the screen or use the wrong markers.