hmm power cable, ide cable, audio cable these 3 rite?
is a cd rom or a dvd rom?
1st cd/dvd rom may be old liao need to change a new one.
2nd dvd disc is spoil therefore cant read.
3rd compabitity issue. for etc dell, acer, tdk(*no more in sg) can
not read some low/no brand made in taiwan dvd disc
4th cable connection corroded,<<< rare case
Last case: u place the wrong side of the dvd 