Enhanced CD Guide
Attribution: Philips, Public domain, via Wikimedia Commons
Definition: Enhanced CD (AKA CD-Extra and CD-Plus) is a broad term used by the music industry for any disc with both audio tracks and data tracks. The data tracks are often but not exclusively for [IBM PC compatible Guide|IBM PC compatible] computers. For Redump.info purposes the term is used exclusively for multi-session CDs (Blue Book) and mixed-mode (Yellow Book) CDs where the disc's primary content is the audio tracks.
- If the data tracks are the primary content of the disc. Then add disc to the DAT where said Data tracks belong to instead.
- CD-I Ready discs while also often called Enhanced CDs are not considered such by Redump and should go under the CD-I DAT instead. Note to that there is at least one known disc mastered like a CD-I Ready one but with PC content. And any such examples are considered pure Audio CDs and should go under that DAT.
Please note! (03-26-23): Currently, Universal Hash is not implemented well for multisession / enhanced CDs. If Universal Hash exists in a submission or entry, please remove it until this feature is fully implemented.
Enhanced CDs may have languages added
Multisession Enhanced CDs have a gap of 11400 sectors between sessions
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