Any Better FIREWIRE Software?

I currently use (CAP DVS) software to record from my COMCAST Motorola Dvr to my Win XP computer via Firewire. It works well enough but there is a major limitation when recording–you cannot pause the software, fast forward the source, and then resume recording. It takes a full hour to record an hour program. Note–I can fast forward the source but the capture gets out of synch. I can also stop the recording and fast forward thru the commercial and start a new recording but too often on trying to stitch the separate files together, a .0001 error in framerate or image size is introduced and the project won’t join.

I’d like to find a firewire software recording program that would allow a pause function. Some I have found only seem to work with video cameras rather than the Cable Box. Any ideas?