Starnge backup problem with V7 and DMS3

I am currently using a v7 ps2 (brand new) and dms3 v2.2 flash (2.0 hardware) and i am experiencing this problem with three back ups that I have come accross. I have tried playing twisted metal black (dvd+r), twisted metal black online (cdr), and midnight club(dvd-r). The bgms skip and jump for all three games but work fine in another, older v7 with messiah2. The originals work fine in the V7 with DMS3 as well. I have fixed all the points and even tried adjusting the laser.. What else could be the problem?