Sounds like the hard drive is starting to fail. Shouldn't be a big issue, since IIRC, the PS3 makes it quite easy to replace. Pretty much any SATA 2.5" hard drive will work is my general understanding. It can be bigger or smaller than 60GB. The only real catch, is that you're likely to lose anything on that current drive.
When starting up this message comes up on screen "cannot start correct hard disc not found".I then have to shut down and repeat this three or four times my console is a 60 gig is this a common problem with this version.Any help is welcomed!!