I'm sure you get these type of questions all of the time so please accept my applogies if this bores you to death.
Anyway, I have an Xbox which I bought on the UK day of release. I got it chipped last month mainly to play MAME and few back ups, sadly after about half an hour it starts playing up and it has trouble reading dics... But reads originals fine.
They guy who chipped it reckons that newer Xboxes have better drives and that I should try & sell/swap my machine for a newer model. Do you know if the newer models have better drives or is he just telling me a load of old crap?