MAMEWorld Forums - EmuChat - Space savings from new CHD delta feature

News
Ultimarc
Emu Loader
Programming
MAME Artwork
progetto-SNAPS

MAMEUI
HBMAME
EmuChat
Hardware
The Loony Bin
MAME Artwork X

MAMEWorld >> EmuChat

Index

Flat

John IV

IV/Play, MAME, MAMEUI

Reged: 09/22/03

Posts: 1969

Loc: Washington, USA

Send PM

Space savings from new CHD delta feature
10/21/23 08:04 PM

So Vas added the ability to load a delta of a CHD child which could lead to a significant space savings in CHD storage.

https://github.com/mamedev/mame/commit/d1172bf710f2a7b1777ed7687f5ba65748d90ee9

Does anyone have a batch file or similar to automate this across all your CHDs?

Per Vas:

Using sf2049tea and sf2049te as an example, you can create a delta CHD like:

Code:


chdman copy -i sf2049tea.chd -op sf2049te.chd -o sf2049tea-delta.chd
mv sf2049tea.chd sf2049tea-abs.chd
mv sf2049tea-delta.chd sf2049tea.chd

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

Extra information	Permissions
Moderator: Robbbert, Tafoid 0 registered and 150 anonymous users are browsing this forum.	You cannot start new topics You cannot reply to topics HTML is enabled UBBCode is enabled	Thread views: 754

Browser Test | Delete Cookies

atom-guru

UBB.threads™ 6.3.2