Sega Dreamcast Guide
Attribution: Evan-Amos, CC BY-SA 3.0, via Wikimedia Commons
Definition
The Sega Dreamcast is a console developed by Sega and released in 1998. The console is most well known for being the first console with a built-in modem for online gaming and its use of GD-ROMs which have a capacity of 1 GB. Dreamcast also supported CD-ROMs via their music format MIL-CD. MIL-CD was taken advantage of by modders, pirates, and homebrewers to create unlicensed discs and pirated versions trimmed down to CD-ROM capacity. Another noteworthy feature of the Dreamcast is the VMU a memory card which can be inserted into the controller and has basic PDA functionality.
General Notes
Serial field is for box serial. Internal serial (found in header) is listed in comments as [T:ISN] (header serial) (current MPF outputs it ready to be used in the submissioninfo.txt)
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MIL-CDs are Multisession
How to calculate multisession range (MPF should do this automatically now):
- Open disc.txt in logs and go to TOC
- Session 1 range is LBA 0 to (last sector in session 1 minus 11400)
- Session 2 range is (first sector in session 2 to last sector of disc)
Example:
Audio Track 1, LBA 0 - 14887, Length 14888 Audio Track 2, LBA 14888 - 15484, Length 597 Audio Track 3, LBA 15485 - 226234, Length 210750 Audio Track 4, LBA 226235 - 226831, Length 597 Audio Track 5, LBA 226832 - 227278, Length 447 --- Session 1: 0-3487 -> (14887-11400) Session 2: 14888-227278
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We should not add Rev A, Rev B, Rev C to Dreamcast discs based on mastering code information only, as many of them have no known earlier revisions.
Example: Virtua Striker 2 Ver.2000.1 is not Rev C even though mastering code is HDR-0045-0226C, as there are no known instances of -0226, -0226A or -0226B over many dumps.
If there are known revisions, then we can use the letter to separate revisions in dat filename. We will not use any "Rev" denomination if there's no letter at all (ie, no "Rev 0" or similar).
Example: House of the Dead 2: HDR-0007-0050 (no Rev used in filename), HDR-0007-0050A ("Rev A" in dat filename), HDR-0007-0050B ("Rev B" in dat filename)