I never had that problem while I was on PS3, but my PS3 was upgraded with a solid state drive, so maybe that's why. If so, it suggests a drive issue rather than a communication or memory issue, though, either of which would seem a more likely match to the symptoms. (My PS3 is the same older model that includes the PS2 as well as PS3 chipsets for full backwards compatibility. Really nice feature, but the drive that came with it was way too small for me, so got upgraded quite a while ago.)