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This is the 'Sony PRD-250 Multimedia Discman' from 1996, with promised CD-i and Photo CD compatibility, but how would that work?

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Last year we showed you the PCMCIA CD-player by Panasonic. It remained unreleased but it promised  CD-i and Video-CD support by using a CD-i hardware card. Jorg kennis made an important statement about this CD-i function: "About this player: "Interesting. But I assume this is just a "regular" CD-ROM player (albeit with a PCMCIA connector to connect it to a laptop in an era that USB was not yet standard), and that it does not have CD-i specific features, just "hardware" capable of reading CD-i discs (like most CD-ROM drives)". Today a similar product, which was actually released, was showed to us by CD-i member Andy AVAV Systems. Andy: "This player works as CD Audio Walkman or with PCMCIA SCSI Card for Photo CD, CD-Extra CD-XA CD-Rom etc. I’m told with right software it does CD-i too, but no proof of that so far"


I remembered the Panasonic player and with the right card it could be connected to a PC, it would not be able to play CD-i by itself. In that case the discman functions purely as a reader, not as a player of, for example, the CD-i format. The discman works with an enhanced card to extend compatibility via a PC (not just CD-i Ready). With the PCMCIA SCSI Card, you could connect the unit to a PC? In that case the only functional part is the reader inside. It's too small to hold the hardware by itself. Sony worked on a variety of formats! If I go through the manual, Photo CD support here means you can view the pictures through Quicktime on PC, reading from this reader. A PC is needed to connect. I don't see it supports the photo cd application. 

The compatibility of CD-XA includes support for CD-i, Photo CD and Video CD. "CD-ROM XA (for eXtended Architecture) discs were designed to allow audio and other data to be interleaved and read simultaneously. Formerly, images had to be loaded before the audio tracks could be played. The CD-ROM XA specifications include 256 color modes, which are compatible with PC formats and CD-I, and Adaptive Differential Pulse Code Modulation (ADPCM) audio, which is also defined for CD-I. Photo CD, Video CD and CD-EXTRA have all subsequently been based on CD-ROM XA, although it has not survived as a separate technology."


Still, this kind of CD-i support (including Photo CD and Video-CD) was a great attempt to combine (and let survive) the interactive format (this Sony pleayer was released in 1996), trying to solve the war with the CD-ROM format.

[Thanks, Andy AVAV Systems]


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