Issue with Digital8 playback/capture of analog tapes

[brassplyer]

One of the features of my Sony TRV-240 Handycam is it will play back and allow Firewire capture of analog 8mm and High8 tapes. It does but when capturing I run into problems particularly with longer segments.

While the playback on the viewfinder looks and sounds fine, when playing back the file I frequently find the audio stopped being captured at some point. If I re-capture from before that point, the remainder of the tape will play back fine.

Also I can find severe dropped frames problems even though they didn't show up on the capture app.

I *don't* have this problem if I play the files on an analog cam and use the Digital8 as a pass-through box. But the video actually looks better if it's played by and captured from the Digital8 cam.

Capturing to a secondary SATA drive using the Firewire port on a Soundblaster Platinum EX sound card.

Anyone have insight into this and possible remedies?

Thanks.