Originally Posted by
Aloha_Shooter
As USMC88-93 points out, make sure you choose the format you want before getting rid of the CDs. I keep mine so I have the option of changing formats or recording density -- when I first began ripping my CDs so I could carry my music more easily, I used 128 kbps, sometimes 160 for "high" resolution in order to keep file sizes manageable. Nowadays, I'd want 192 kbps for the car and 256+ for home use.
I won't get into "fair use" defense since I detest the DMCA and RIAA but from an ethical standpoint, selling or giving away your CD but keeping the digital copy is depriving the artist of his/her cut on that album. If you keep or trash the CD, all you've done is change formats, much like those of us that taped record albums so we could carry more music on cassette tapes (yes, I'm old as fsck).