Persona 3 FES: Inconsistent stuttering in all cutscenes.Mode 2 & DMA: UDMA0 fixed the ingame stuttering w/ the help desk, but title screen cutscene still stutters. Ratchet and Clank: Inconsistent stuttering in title screen cutscene, ingame stuttering anytime the help desk text box/voice appeared.Mode 1, Mode 2 and lowering DMA modes changed the time the stutters would occur, but it would still consistently occur. GTA: San Andreas: Same consistent stuttering as Bully.Bully: Consistent stuttering in all cutscenes, eg: if I restart the game and watch the same cutscene, it stutters at exactly the same times.Some examples from games I tested on both my PS2s. Different versions of OPL made no difference, compatability modes and lowering DMA helped sometimes. I originally formatted both HDD with LaunchELF and only ever used hdl_dump to install games. I have 2 PS2 and have seperate HDD for each. Both would occasionally crash in OPL HDD games list and constant stuttering like you described. I brought 2 gamestar adapters last month.