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NEC PC-Engine/SuperGrafx => PC Engine/SuperGrafx Discussion => Topic started by: akirashinigami on October 20, 2007, 01:04:41 PM

Title: CD-ROM vs Super CD-ROM?
Post by: akirashinigami on October 20, 2007, 01:04:41 PM
What exactly was the difference between them?
Title: Re: CD-ROM vs Super CD-ROM?
Post by: SignOfZeta on October 20, 2007, 01:16:21 PM
CDROM games run with the system card that came with the CD attachment. Super CDROMs required a different system card that was released separately later. This card was basically a new DOS and some RAM.

When the Duo was released it included all the Super CD capabilities.
Title: Re: CD-ROM vs Super CD-ROM?
Post by: Bonknuts on October 20, 2007, 03:34:49 PM
 The original CD unit didn't have adequate ram which restricted games and increased load times. The SCD increased the memory by 4 times. I should point out that most CD games are guilty of wasting memory (ram) - because they didn't even bother compress graphics which would have made room for more animation and tiles/sprites :/  Some of the later regular CD games were very efficient though like Valis 3, (and especially ) Valis 4, the first Spriggan. SCD games like GOT and LOT used compression through out the game - I wish more SCD games did this.
Title: Re: CD-ROM vs Super CD-ROM?
Post by: Necromancer on October 20, 2007, 06:03:47 PM
In addition to what has already been said, here's the numbers for you (including one you didn't ask for, 'cause I'm feeling generous).

CD-ROM: .25 megabits o' memory
Super CD-ROM: 2 megabits o' memory
Arcade CD-ROM: 18 megabits o' memory