So it is a lot of work to add a new game. For Daphne to work each game has to be compressed into MPEG2 in a special way, breaking each sequence the game uses up and making sure a key frame is at the exact position for every point within the video that the game will want to jump to. Therefore this causes problems for LD games because they work by jumping to specific frames within the video as the game is played. This means you can't just jump to a specific exact frame, but have to jump to one of the key I frames in the sequence so the playback codec can build the whole image. The compression works by having key frame every so often, and then reference frames with just the differences between. Using MPEG2 versions of the videos makes the files much smaller, but with MPEG2 DVD style compression you don't have every frame of the original video stored.
With Daphne a lot more work is needed to support any new games. The downsize is huge LD CHD files for each game. This means that for additional LD games to be added to MAME all you need to do is dump the LD into the CHD format and dump the game's rom, then MAME should emulate the game perfectly. It also means every frame is completely intact and the game can be emulated perfectly as it ran originally, allowing the game to jump to any point within the video during gameplay. With MAME the LD video files are uncompressed, so are perfect quality and look identical to the original LD version. Whereas MAME's way is to emulate the original arcade game exactly as it was originally, and this makes the LD images much larger (some are 60GB each). Daphne uses MPEG2 video versions of the original LDs and so this normally keeps each game's total video size to within a DVD (4.3GB or less), but Daphne therefore has to use different techniques to make the LD games work. The advantage of Daphne is that the LD images are much smaller than the MAME CHD versions. However Daphne and MAME do support a few other common CHD LDs. So the LD emulator Daphne needs to be used. :unsure:ĭragon's Lair and the other Digital Leisure owned games won't be appearing on MAME any time soon because I think they have a deal with the MAME developers not to include them. I don't know why I thought it was CHD based.
#Hyperspin project torrent plus#
I still think they should allow a working only MAME torrent and a thinned out CHD torrent, however it's an awesome resource so who am I to argue? Plus there are other places to share such a project.
#Hyperspin project torrent full#
Well I got told in no uncertain terms that this question has been asked before at Pleasuredome and it will not be permitted to create a torrent with a cut down selection of working only and/or CHD titles that run at reasonable speeds - full only MAME torrents. What do you guys think, we could put something together.
#Hyperspin project torrent free#
I can understand this may affect seeding numbers of the main torrents however, but should be ok if not offered as a free torrent. I tried to put a list together myself of the best 2D semi-3D CHD titles that are working from info on the internet:Ĭapcom vs SNK series(not sure if this is working) This should result in a very compact and useful torrent especially for those who need a smaller collection to run on retro dedicated emulation machines.Īnother idea is a torrent of CHD games which are 2D only or not entirely 3D based - as many 3D CHD games don't run well on weaker systems. Now that the collection is getting huge, I'm sure it must be possible to compile a list of working only games and delete those that are marked as not working. Just had an idea, perhaps suggested before, actually very likely, but do you think we need a working games only torrent for MAME? In other words a torrent which only includes working ROMS and CHD files? So I posted over at pleasuredome and thought I'd just dump the text here. Of course the recent set is getting quite large. I've had the EMU bug recently and my attentioned turned to updating my ancient MAME 0.138 collection. Hope you are all ok, and Harrision hope you are on the way to recovering from the aweful flooding.
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