Audio/video sync issues when digitizing VHS tapes

[Dawgsfan]

I recently purchased a ClonerAlliance Box Pro to, among other things, digitize old VHS tapes. Most tapes don’t have any problems and I’m generally happy with the results.

However, occasionally I’ll play back the MP4 recordings made by the box and find that the audio and video are slightly out of sync. I’ve verified that the sync issue isn’t present on the original VHS. When I previously converted these tapes to DVD, there were no sync issues.

I’m using a Toshiba SD-V280 VCR/DVD combo to play the tapes, and I’m using a Toshiba Canvio Advance 2TB USB 3.0 portable hard drive to save the recordings from the Cloner box. I’m recording in 1920x1080 and on the high bitrate setting on the Cloner box. Most of the VHS tapes are in SLP mode, with an occasional SP mode tape.

Any ideas on why some tapes have sync issues but others don’t?

Thanks.

[lordsmurf]

I recently purchased a ClonerAlliance Box Pro
Any ideas on why some tapes have sync issues but others don’t?

Bad decision, that's a known terrible device.
Sync issues are always due to lack of any TBCs. TBC is required, not optional.

[Dawgsfan]

Thanks, lordsmurf. I appreciate the feedback.

I just noticed the FAQs at the bottom of your post. I’ll check those out. I want to get decent results but not break the bank!

Thanks again.