Really annoying recording problem. help?

[amazingrolo]

this has also been posted to em411 and CDM, my apologies for readers of those forums...

I'm recording my brother's new album right now, and we're having a really annoying problem. For various reasons we're forced to record onto a Roland VS-880 (digital 8-track)...I want to do the overdubbing and mixing in protools, though, so I hooked up the 880 to my m-audio 410. I'm syncing them through MIDI and sending two tracks into my computer at a time. Should be somewhat straightforward...

but for some reason I'm getting this really weird wow and flutter stuff! it's not on the original recording, only when I record into ProTools...and it's not in the same spots every time, it seems totally random. Here's an example of the accordian track screwing up:

http://www.theamazingrolo.net/blog/bend.wav

I'm using the analog inputs, since the spdif inputs don't seem to work at all. Could that be related? I didn't think so, but I'm at a total loss.

Any ideas as to what this could be?

My setup: Roland VS-880EX, iBook G4 1.33 (10.4.6), M-audio 410, external hard drive (USB 2.0), ProTools M-Powered 7.1. The drivers are all up to date, as far as I know.

Any help would be really really great, this is bothering me enormously.

[DigiTechSupt]

The problem is very likely that you need to clock those systems together via some kind of digital clock - SPDIF optical or RCA or ADAT, if possible.

Either set Pro Tools to clock to the VS-880 or vice versa - this will keep the sample clocks locked when doing a transfer and you won't have the drifting problem.