Many have noted that the new iMac comes with a Pioneer DVR-104 for it's Superdrive in contrast to the previous DVR-103 in the PowerMac models... a Macintouch letter clarifies the difference:
- physical dimensions; it is a bit shorter, now conforming to usual size of 5.25" drive mechanisms. The original DVR-103/A03 was a bit longer, and made for a tight squeeze in some quarters.
- the -RW spec is a bit faster, but as Apple does not support this, no real user benefit
