If hypothetically you had copied the music at too fast a speed then the quality of the information may not allow a normal CD player to read the CD. The slowest speed setting is usually best for this hypothetical stealing of music!
The CDs produced by a Cd-writer on a PC are not identical in many ways to pressed CD's - they are actually harder to read. They may have more signal jitter - they certainly have a different reflectance - if you use anything above the original standard 74min the tracks may be crammed a little closer together - all in all I think they only produce about 50% of the signal "quality" of a pressed CD
So - many older domestic CD-players cannot read them successfully.
You can experiment with different bransd of Cd and different recording speeds, which may give you a burned CD with less jitter and a higher reflectance, which might improve matters.
It's nothing to do with piracy, as newer domestic equipment is much better, and much is now marked as able to read CD-Rs and even CD-RWs (which are even harder to read than CD-Rs)