The PS3's Blu_Ray drive reads at a sustained 72 Mbit/s (9MB/s), a little calculation indicates that (in theory) in just 46 minutes the entire content of a 25GB disc could be streamed! The PS3 drive is far from slow!
To quote myself from another forum, comments I made years ago:
"When available the Cell will be the result of over 2000 manyears of engineering. IMO doing this much R&D is fully justified, as Sony already sold over 190 million legacy PSX/PS2 units and Cells will be used for lots of other uses as well, such as HDTV and mainframe computers.
Note that Cell development will not stop with the PS3, 5.2 GHz versions have already been successfully tested in lab conditions. Ohter devices may come with more than just one Cell unit."
"It will probably take some time before developers manage to get the most out of this platform, as has for example also been the case with the classic Amiga chipsets. The early Amiga games don't compare well to the complex graphics used by for instance game like Elfmania or Lion Heart."
"I understand that games developers may not be too fond of the idea of having to learn new ways to write their software. But according to the article at least they do seem to believe that multithreaded software is the way forward.
Multithreading should not be confused with multitasking. Multithreading is the ability of an operating system to execute different parts of a program, called threads, simultaneously. The programmer must carefully design the program in such a way that all the threads can run at the same time without interfering with each other."
I think this may shed some light on my interests in the PS3 despite not being a more traditional Playstation gamer.