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John IV
IV/Play, MAME, MAMEUI
Reged: 09/22/03
Posts: 1969
Loc: Washington, USA
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Re: Space savings from new CHD delta feature?
10/22/23 06:27 PM


Yes, it basically creates a diff between the existing clone and the parent, which can share a lot of data. The space savings can be enormous for a full set collection. I already shaved off 20GB with just four CHDs converted.

Also, Roman just cranked out a test .exe of cmpro if anyone wants to test it before he releases a full build.

https://www.emulab.it/forum/index.php?topic=9148.0

Note the conversions take a while if you haven't dealt with CHD 'editing' in a bit, as it has to do a validate extract and re-compress.


john iv
http://www.mameui.info/







Entire thread
Subject Posted by Posted on
* Space savings from new CHD delta feature John IV 10/21/23 08:04 PM
. * Re: Space savings from new CHD delta feature R. Belmont  10/26/23 08:10 PM
. * Re: Space savings from new CHD delta feature joey35car  10/25/23 09:23 PM
. * Re: Space savings from new CHD delta feature John IV  10/25/23 09:31 PM
. * Re: Space savings from new CHD delta feature joey35car  10/25/23 07:36 PM
. * Re: Space savings from new CHD delta feature Roman  10/26/23 09:01 AM
. * Re: Space savings from new CHD delta feature joey35car  10/26/23 09:35 AM
. * Re: Space savings from new CHD delta feature Roman  10/26/23 09:58 AM
. * Re: Space savings from new CHD delta feature Vas Crabb  10/26/23 11:42 AM
. * Re: Space savings from new CHD delta feature Roman  10/26/23 11:51 AM
. * Re: Space savings from new CHD delta feature? John IV  10/22/23 04:45 AM
. * Re: Space savings from new CHD delta feature? John IV  10/22/23 08:56 AM
. * Re: Space savings from new CHD delta feature? joey35car  10/22/23 05:48 PM
. * Re: Space savings from new CHD delta feature? John IV  10/22/23 06:27 PM
. * Re: Space savings from new CHD delta feature? John IV  10/23/23 09:24 AM
. * Re: Space savings from new CHD delta feature? joey35car  10/25/23 06:41 AM
. * Re: Space savings from new CHD delta feature? joey35car  10/22/23 05:46 PM

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