The CHEAT.DAT supplied with MAME4ALL dates back to over 11 years now (May 18th 2000), which is why I integrated it with the last .DAT released before MAME switched to the XML format (April 2009).

In the cheat menu of MAME4ALL you'll now find the same cheats you already had, followed by a section called "[FROM CHEAT.DAT MARCH 31 2009]" with the most up-to-date extra-cheats (most games that had no cheat will now have some!).

PS: to keep the .DAT small, the cheats for games not supported by MAME4ALL were removed - mind that, before trying to use this CHEAT.DAT with WinMAME or others.