I believe the harddrives used in the cartridges are not your standard 2.5"... they're made to be in the cold and heat. The cartridges are very sturdy. I transported a freezer in my golf the other day and on a turn, it slided and hit the phatbox cartridge. Not a dent, nothing. Anwyays, I'll see this winter if it fails to start or whatever.
Dart, I love my PhatBox system. I use it 95% of the time, the other 5% is when I'm listening to a sports station on the AM band. It works very well! It's surprisingly quick, no delay whatsoever.
You organize your songs in different playlists. Personally, I filled up the cartridge and put ALL the songs (about 19.5GB

) in the same playlist. That allows me to shuffle throughout all the songs on it. The system reads the ID3 tags and lets you select to play all songs by one artist in particular, or one album, or even a genre. It's really well thought out, and integrates perfectly with the radio unit.
The only drawback is that there is no text displayed on the radio unit. It'll just say TRK and then a number from 1 to 99. Of course, I have 3500+ songs on it, but it will still show 1 to 99. So the track number isn't really useful other than when you're in an album in particular.
The coolest is that everything is voice-enabled. Since you can't see anything on the radio unit screen, there's a voice that'll tell you the current playlist name, artist name, album name or genre. It allows for easy browsing!
Oh, another drawback is that the voice won't tell you the title of the track. When you press a button on the radio, it'll tell you the current playlist, current artist, current album and current genre, but not the current song title. Not that bad a deal.
If you thinking of getting a CD Changer, DON'T! My friend told me that it has problems with burned CDs, some don't play at all, and they get stuck in the mecanism once in a while. He'll be switching to a PhatBox in a few months.
Btw, it sticks out in my car too. They had to cut out part of the side wall so that they could still install it in the CD Changer slot. They did a good job and with the cargo cover in my Golf, it really doesn't bother me as it's hidden from the outside, and when I have groceries or anything else in the cargo area, the PhatBox isn't in the way at all.
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