PlayStation® / PS one® format software
PS one® titles are playable on PlayStation®3 through software emulation and this is available on all PlayStation®3 models. The vast majority of PS one® format software titles are playable, including PS one® classic titles downloaded from the PlayStation®Network, but full compatibility is not guaranteed.

PlayStation®2 format software
Compatibility of PlayStation®2 titles is largely achieved through a combination of software and hardware depending on the particular PlayStation®3 models, and this is supported by the PlayStation®3 system software.

This is available in PlayStation®3 60GB and as a result the majority of PlayStation®2 format software can be played with this model. Future PlayStation®3 system software updates will continue to support the current PlayStation®2 software compatibility for PlayStation®3 60GB.

However, PlayStation®3 40GB and 80GB are not equipped with these features and therefore PlayStation®2 format software cannot be played with this model.