I have 2 problems.

The first one is- when I'm burning VCD movies(legal of course), the used read buffer and record buffer always goed empty end refill from the beginning to the end of the burning. while burning on 4x it doesn't occur, and while burning date from the computer or CD to CD it doesn't occur to.

So why is it happening?(DMA is automatic checked by Intel Application accelerator).

The second one is- Why I have jumping on playback VCD movies?