I had MAMEv67 on my computer until last weekend when I installed v70 and all the new roms and "changed roms" (?) from certain rom site. Problem is that now theres a bunch of roms that aren't working that used to work (metal slug 3 not encrypted, for example). The ones that I tried said they were missing roms.. What caused this and should I used some kind of rom manager to correct this problem?
Spanks,
DM