Anyone else having problems with Friends DVDs? I bought the complete series and started loading them up my server. I've made it to season 2 but found two discs to be unplayable (and un-mp4-able) on either of my computers. I assumed they were simply bad discs and borrowed the same ones from a reliable source but found they behaved the same way. Is there something going on with these discs? The ones I'm unable to use (so far) are Friends Season 1 Disc 4 and Friends Season 2 Disc 4.