Difference is the ones that say CD-R Music are meant for recording on stand alone CD recorders for home stereo units, versus using regular CD-R's that can be used in computers.
I have a Sony CD recorder with two trays that I use to burn music from other CD's, cassettes, etc.
As far as longevity, it's probably to early to tell how long these CD-R's will last. I use Maxell C
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