IXtreme 1.51 (BenQ/LiteOn/Samsung dont have it. The only version that boots with out actv.iso(all waves) is Xtreme 1.51 (Hitachi) this version have already the so called 'wave skip'. (mine included) If you have one of the drives like mine & don't have iXtrme 1.61 or LT & you get the 'Play DVD' message on wave4 games then you will need to upgrade your flash or use this disc to load any wave4 game. This disc skips the video/update part of the loading process (the bit we identify the wave version with) & thus will always flag you on XBoxLive Patching games works for some but some of the drives won't boot patched disc's. (my old system with iXtreme 1.51 is still loading all new wave4 games but my new system on 1.6 wan't read without this disc. Yes it will boot all waves but unless you have a really old flash you only get problems with wave4. So Play NOTE: You will need to reload this disc before booting each game WARNING: DO NOT play online.
