ixtreme backups

[Visuatrox]

i recently flashed my 360 with the laterst firmware my drive is toshiba ms28 um and i notice i couldt play my old backsups but my new ones work fine, so my question is which firmware is the best to play allbackups,

(i dont care about xbox live)

 

[TheT2]

i think xtreme53 works. i think it doesnt do the security checks but i need some others to chime in thou. to confirm.

 

[zerach]

v52 is the last of the old firmware i used and it will play games that are not stealth patched