This issue has been discussed at length many times before, check the older posts. Basically, the older players don't like the cdr's much. Try burning the disc at a slower speed, and try a different brand of media. I find the CMC Magentics cdr's sold as KHypermedia, HP, or Memorex play well in older players.
BTC 316c 16x dvd-rom
HP 7200e (retired)