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37

We used to have to write our own video playback system, so each game did it differently. I worked on Microcosm for the SegaCD and if I recall we used a 16 colour palette for the video playback and had to create our own compression and decompression tools to keep the overall data bandwidth below 150KiB/sec. Later games used tricks like changing the palette ...


34

As far as I remember, this wasn't a CD, but (supposed to be) a Laserdisc, and he was using a Philips player (the movie contained several Philips machines). Laserdiscs were available in different sizes between 12 cm, which is like a CD and up to 30 cm (LP size). In a technical way, the movie screwed up, as Laserdisks were neither digital (they used an ...


17

Playback of compressed digital video is handled entirely in software on the Sega CD which is why FMV games on it play with the video taking less than the full screen and at relatively low frames per second. It doesn't contain any dedicated decoding hardware. It does contain a faster processor (12.5MHz 16-bit Motorola 68000, 5MHz faster than the base Sega) ...


15

That is a Philips VP415 LV-ROM player.


13

TL;DR; Yes and yes, but. CD-ROM Mode 2 offers all 2336 bytes of a CD-ROM block for user data. By default all CD-ROM drives can read Mode 2 disks as well Mode 2 CD-ROM have been produced, but it never really took off. Mode 2 is not raw, but still incorporates basic error correction. Background: CD-ROM has error correction so that in the event of a slightly ...


10

Well, a few users are creating compilation of games for the CD32 and the CDTV. The most prolific is AmigaJay. For instance here he released several compilations for CDTV including a lot of titles: Volume 1 Volume 2 Volume 3 Volume 4 Volume 5 Volume 6 Basically, the compilations boot with a menu (AGS or other) then run scripts to assign volumes and boot ...


10

Physically, the Panasonic and Mitsumi interfaces are identical to unkeyed ATA interfaces, and 40-pin unkeyed IDE cables can be used to connect Panasonic and Mitsumi drives to a compatible controller. The Sony interface is based on the 34-pin floppy interface instead. In terms of signalling, according to AllPinouts the Mitsumi and Panasonic pinouts are the ...


8

Why would you think that you need a single speed writer to write a CD for a single speed drive? With an ideal writer, and ideal media, the resulting CD would be the same, no matter at which speed it was written. But the process of writing a CD is analog -- a laser beam locally changes the chemistry of the CD -- and faster writing means applying more energy ...


7

To answer the first half of your questions: The right-side 60-pin expansion slot is bespoke, and found on Mega Drive / Genesis 1 and 2 only. It is not present on the Genesis 3 or Nomad. It exposes the address and data buses and a lot of other signals. In that respect it's very similar to the 86-pin expansion slot on the left side of an Amiga 500 (and the 56-...


7

The data here is a bit unclear what the mentioned measurement of 'hits' is about and where the percentage of 5 or 50 comes from. The whole setup doesn't give much information. Lets try to see what it could mean in relation to real world numbers. CD-Drives are usually not rated in 'hits' but MTBF hours, like most machinery, often amplified by duty ...


6

I think your premise is a bit off. Compression (lossy or otherwise) makes media much more susceptible to errors, not less. If you flip one bit in an uncompressed image, the probable result is that one pixel of the output is incorrect. If you flip one bit in a compressed image, the probable result is something like this. If you flip one bit in a video file ...


5

Try to approach the classification differently: 1) The CD-DA standard defined an audio sector of 2352 bytes. 2) The CD-ROM standard took 16 bytes from this sector for a 4 byte header and 12 sync bytes. The header allowed random access to this sector (which didn't work precisely enough for audio sectors). 1 byte of the header was for the mode. Mode 0 ...


4

We are a computer museum here in the Northwest, we were going to open up in August but unfortunately have had to push it forward because of the Covid. We are looking for magazines to put into our museum and also in the Internet Cafe. We would love to take them for our museum which is called Northwest Computer Museum/Workshops in Leigh. Website is www....


4

If this is for your personal use, I'd say "whatever works". Make attempts at the fastest speed with proper CD-Rs, and test them on the real machine. If it doesn't work, reduce the speed. But in my experience, the quality of the CD-R themselves is more important than the burning speed. Also, CDTV may suffer from dying laser, and you can burn ...


4

Firstly, I haven't found any anecdotes of Crash Bandicoot causing premature drive failure in PlayStations. While this mostly answers the basic question, it leads to the obvious question of why. It certainly is true that Crash Bandicoot did rely on streaming data from the CD whenever the player moved through the level; the whole level simply wouldn't fit in ...


1

I have both the Wicher 500i and the IDE68k (in fact I have 2 of each). The IDE CD drive is recognized by both using 2nd IDE channel. However, it crashes so often (Workbench 3.1.4). The headache is selecting the right software and drivers to make this work! Still, I didn't figure it out.


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