PlayStation Development Network

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Retail PlayStation BIOS's
Percentage of all retail PlayStation BIOS's dumped (21/33):
Still missing: SCPH-1000, 1001, 1002, 3000, 3500, 5000, 5003, 5500, 5501, 5502, 5552, 5903, 7000, 7000W, 7001, 7002, 7003, 7500, 7501, 7502, 7503, 9000, 9001, 9002, 9003, 100, 101, 102, 102A, 102B, 102C and 103.

Notes:
- The SCPH-5003 is actually just a SCPH-1001 [MD5 CONFIRMED BY BAD_AD84).
- The SCPH-7003 is actually just a SCPH-5501 V3.0A [MD5 NOT CONFIRMED].
- The SCPH-9002 is actually just a SCPH-7002 [MD5 NOT CONFIRMED].

Download SCPH-1000 [NTSC-J] dumped by N/A
Download SCPH-1001 [NTSC-U/C] dumped by N/A
Download SCPH-1002 [PAL] dumped by N/A
Download SCPH-3000 [NTSC-J] dumped by N/A
Download SCPH-3500 [NTSC-J] dumped by SCPH-1002
Download SCPH-5000 [NTSC-U/C] [BAD DUMP - DO NOT USE]
Download SCPH-5501 [NTSC-U/C] dumped by Shadow
Download SCPH-5500 [NTSC-J] dumped by N/A
Download SCPH-5502 [PAL] dumped by Shadow
Download SCPH-5552 [PAL] dumped by N/A
Download SCPH-7000 [NTSC-J] dumped by N/A
Download SCPH-7001 [NTSC-U/C] dumped by N/A
Download SCPH-7002 [PAL] dumped by N/A
Download SCPH-7003 [NTSC-J] dumped by N/A
Download SCPH-7501 [NTSC] dumped by Tamaki310
Download SCPH-7502 [PAL] dumped by N/A
Download SCPH-9002 [PAL] dumped by N/A
Download SCPH-100 [NTSC-J] dumped by SCPH-1002
Download SCPH-101 [NTSC-U/C] dumped by N/A
Download SCPH-102A [PAL] dumped by SCPH-1002
Download SCPH-102B [PAL] dumped by SCPH-1002
Download SCPH-102C [?] dumped by N/A

Miscellaneous:
Sony PlayStation 1 BIOS found in the PlayStation 2
Download SCPH-18000 [NTSC-J] dumped by N/A
Download SCPH-30003 [PAL] dumped by N/A

Sony PlayStation 1 BIOS found in the PlayStation 3
Download PS3 BIOS [?] dumped by N/A

Sony PlayStation 1 BIOS found in the PlayStation Portable (PSP)
Download PSP BIOS [?] dumped by N/A

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Development PlayStation BIOS's
Percentage of all development PlayStation BIOS's dumped (6/14):
Still missing: DTL-H1000, 1000, 1001, 1001, 1002, 1100, 1101, 1102, 1200, 1201, 1202, 2000, 2500, 2700, 3000, 3001 and 3002.

Debug BIOS's:
Download DTL-H1001 [NTSC-U/C] dumped by SCPH-1002
Download DTL-H1101 [NTSC-U/C] dumped by SCPH-1002
Download DTL-H1202 [PAL] dumped by Aspireone45

Net Yaroze BIOS's:
Download DTL-H3000 [NTSC-J] dumped by N/A
Download DTL-H3002 [PAL] dumped by N/A

Sony Development Boards BIOS's:
Download DTL-H2000 dumped by Shadow (with thanks to Shane McRetro)

If you're looking for more development system dumps, check out viewtopic.php?f=69&t=573

To bad SCPH-5903 was never copied. With this bios we may have been able to bring VCD support too other models.

BIOS Versions with listed models

Undetermined 1.0J 1.1J

2.0AE 2.1AEJ 2.2AEJ 3.0AEJ 4.0J 4.1AEJ 4.3J 4.4E 4.5AE

It's a shame 5903 hasn't been dumped, but something tells me it wouldn't matter anyways since it's probably using a regular ROM (fact: it can play regular games, so it's got to have all the vanilla features for legacy) with the VCD parts embedded somewhere else in the hardware.

I thought that too but i stumbled across the specs for that model and it had the same ram, processor, and additional hardware was not mentioned. You need too think, even the unofficial VCD mod piggybacks the bios, so it can play the disks, so even if it had the hardware embedded the bios would be different. It would be cool too see.

I reckon it would be in the BIOS or in the Mechanism Controller.
Last thing I would expect is a custom GPU or even a CPU bus attachment for processing the VCD.

http://www.ebay.com.au/itm/SONY-ASIA-WH ... 114wt_1396

Well, maybe this photo will explain a lot about the PlayStation VCD Player (SCPH-5903).
It is a custom attachment plugged into the bus

I would like to thank Lingjr Wai Hung Barry, for the photo inside of his PS1 VCD console.

I see a separate processor for the VCD processing, DRAM and maybe SRAM which would be most likely for buffering, a controller that looks like a mechacon (mechanism controller), 3x crystal oscillators I believe, a foam block for padding against the steel chassis to keep the board stable, a mosfet/transistor for VREG and a tiny chip next to it probably acting as the audio converter. There also seem to be two plastic PCB mounts holding the VCD board to the main PlayStation board.

It is most likely plugged into the CD-ROM controller which would have a socket.

I wish i had the money to buy this unit, take off that board and see how exactly sony officially extended the functionality of their device. I am quite sad that there was a second processing unit inside though as the bios is less useful now.

As expected, it's just additional hardware for extending the capability of the console to reproduce VCD. Seems very similar to what the VCD extention for the Saturn does.

This looks just like a daughterboard, I guess is a DB.

No service manual?

What's the real differences between 7001 & 7501 ?!

DIY VCD Movie Card for PS1
http://www.ebay.co.uk/itm/190597013036

That one is for SCPH-900x only (AFAIK), and it uses a Winbond W9925QF, is very limited, and I don't think VCD on nowdays is any useful at all (we're on blu-ray era after all, and soon 4K resolution).

Photos:
http://webcache.googleusercontent.com/s ... ja|lang_pt

Manual:
http://a4.sphotos.ak.fbcdn.net/hphotos- ... 3151_o.jpg
http://a5.sphotos.ak.fbcdn.net/hphotos- ... 8944_o.jpg

Good post! I was not aware of such a device.

It proves my theory about the chip stacking though a socket though as the original VCD PCB would do

I don't see a use for this though. It looks like A LOT, of hard work to solder it and install it all, only to play VCD's.
PSIO will do much, so much more, yet it is only plug and play... Just wait and see what we have up our sleeves

Damn shadow, now I can't even sleep!

Amazing!!

Ive ordered one and will try:
+Install
+ look how it works globaly and document it(Nice )
+ Dump any code there is to dump
+ try making it work on other versions if possible

Please know that I have also other projects and this may take a while but the installation seems an hour work, Easy.

Sounds awesome CodeAsm

Type 79 wrote:DIY VCD Movie Card for PS1
http://www.ebay.co.uk/itm/190597013036

I forgot to mention, this has been done before:

The PCB above is much better (professional) than those currently sold.

What other consoles are you looking for? If I can help out I will.