Update: CD/R's work but not CD/RW's.

Yes, it is entirely expected that an older drive would be unable to read CD-RW discs. This has nothing to do with the OS you're running.

(It was once popular to use CD-RW discs with "packet writing" software that would use the UDF file system, and that would require special consideration - but as we have established, if you were using imgburn, it is probably not UDF-formatted.)