We don't let much
DRM into our lives, but I have a few FairPlay'd tunes I bought the kids when I was less strict.
I'd like to include them in the AAC CDs I put the childrens' playlists on, but our
SONY car stereo doesn't do FairPlay. Of course I could burn a CD then re-encode the tunes to MP3 or AAC, but I'd tried that before and the results were awful. The re-encoded tune sounded like AM music (few remember how bad that sounded!).
This time, though, I'd try re-encoding at 320 kbps, no VBR, 44.1 sampling. I figured I'd also try the
iMovie HD DRM removal trick. [1]
The iMovie HD trick turned out to be a nuisance -- I'd rather just burn a CD. Curiously, however, I got much better results this time than previously.
The original 5.6 MB FairPlay'd tune turned into a 52MB AIFF audio file which I then turned into two non-FairPlay'd AAC files:
- 128 kpbs (standard): 5.0 MB AAC (so smaller than the original - not good!)
- 320 kbps non VBR 44.1 AAC (max quality AAC using iTunes encoder): 12.5 MB
Here's the surprise. They
all sounded reasonable using my Bose noise canceling headphones. I'd expect the AIFF and original FairPlay'd tune to sound identical, but I'm not sure I'd be able to tell apart the 128 and 320 kpbs re-encoded tunes.
I don't know why I got better results today than in the past. Maybe last time I tried re-encoding as MP3, and the AAC to AIFF to MP3 transformations are tougher than AAC to AIFF to AAC. Maybe my ears are getting worse.
I wouldn't try it for Jazz or classical music, but at least some pop tunes survived the AAC to AIFF to AAC round trip better than I'd expected. I would favor a high bit rate for the reencoding though; I really don't have very good ears.
[1] The trick relies on a quirk of iMovie HD that is not present in iMovie '08. iMovie HD will export the combination of a FairPlay'd soundtrack and a JPG as a non-DRMd AIFF audio file.