I know that when i had a Magic2 i had alot of reliability issues with it
Usually it would be the case that RIPS work fine and the PS2 would stuggle with ANY DVD original, but DVD-rs seemed to run about 8/10 times(more then original disks)
And yes Original PS2 imports seemed to work (barely) like 2-3/10 trys if you can afford it i would reccomend upgrading to a Messiah2 simply because Its supposed to be THE MOST RELIABLE Chip out there and it boots everything first try !!
BTW: I don't think Magic2 can play PS1 imports, or backed up PS1 imports unless you patch them, or use AR2 even then they will run Slllooowww on a PAL machine
Voted Best Avatar on PS2newz 2003 !!!
PAL V7 with DMS3,
XBOX V1.1 with Xecuter2.2 PRO Custom Hacked/Edited M$ Dashboard, Self installed and Blue Eject light, Clear jewel