MCE said today that it has begun shipping its internal 2x DVD-R/RW+DVD-RAM drive upgrade for all PowerBook G4 models, several weeks ahead of the previously announced release date. The US$349 drive reads and writes to 4.7GB DVD-R media at up to 2x speed and 4.7GB DVD-RW media at 1x speed, and reads and writes to 4.7GB single-sided or 9.4GB double-sided DVD-RAM media at up to 2x speed. In addition, the MCE drive writes to standard CD-R media at up to 16x, writes to CD-RW media at up to 8x, reads DVD-ROM discs at up to 8x, and reads standard CD-ROM discs at up to 24x. It is compatible with Apple’s iTunes, Disc Burner and DVD Player applications.