04-11-2012,09:27 PM
Discless is mainly for people with a Broken bluray drive in their PS3 (but the ps3 still functions) so they can play these games off HD as well. Ace Combat works on internal as well as external there are only 7 games right now that require a TrueBlue disc you buy online from China as they havent been released to work off hard drive yet.
And yes generally it's a good idea to leave a retail ps3 game in at all times (not a demo disc) to play discless however you pick app_home on XMB menu not the disc icon.
PS3 Slim 4.21.2 Rebug REX 4.31 Spoof (external 1TB/3TB), PS2 Fat w/ Internal HD