What is the reason behind the PS4K?

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Lawlight said:

Yerm said:

the gamecube had those tiny disks though so people werent interested in it. and the PS2 had a built in DVD player. there were other reasons behind the PS2's success

In 2002, no one was buying a PS2 for the DVD player. 

I don't think he meant just DVD playing. The GC's discs could only have about 1.5GB of data, while the PS2 DVDs could have around 4.5GB or even 9GB if they were dual layered. The tiny amount of data made the GC lose out on a lot of good games that just didn't fit.