300598 has Interface : FireWireŽor USB 2.0 while the 300599 has only Firewire.
Formats: DVD-R, DVD-RW, CD-R and CD-RW
DVD speeds (Write, Rewrite, Read) : DVD-R: 4x DVD-RW: 2x DVD-ROM: 12x
CD speeds (Write, Rewrite, Read) : CD-R: 16x CD-RW: 8x CD-ROM: 32x
DVD-R: Disc-at-Once, Incremental recording, Multi-border recording DVD-RW: Restricted Overwriting
CD-R/RW: Disc-at-Once, Track-at-Once, Session-at-Once, Packet Writing,
Buffer 2MB
Box comes with 300598.
6-to-6 pin FireWire cable & USB 2.0 cable, Power supply, DVD Utilities CD, containing User's manual, MyDVD Video Suite, Arcsoft showbiz, WinDVD, Easy CD Creator Basic, Toast Lite, 1 piece CD-R media, 1 piece DVD-R media

Box comes with 300599
6-to-6 pin FireWire cable, Power supply, DVD Utilities CD, containing User's manual, CaptyDVD Mac Authoring software, Toast Lite, 1 piece CD-R media, 1 piece DVD-R media
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