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[haynor666]

I didn't have any, so far

Window was behind scanner window 

[haynor666]

Ok, I've converted couple of chds into delta but right now scanner (full with chd integrity check) shows those deltas as entegrity check failed 

[Roman]

Well yes, since cmpro does a "chdman verify -i %1" command which would fail on deltas....it would require "chdman verify -i %1 -ip %2" where %2 gets replaced with the parent chd filename...but that's currently not supported (but on the to do list).
So...for delta the deep check won't work....but as I said: currently nobody is using delta chds since there are some open issues with them on chdman side, see https://github.com/mamedev/mame/issues/11675

[haynor666]

Yeah, I've seen this issue. For now feature in test but I was curious how much it could save disk space and time for full test chds. Guess we have to wait a bit before full switch to deltas

[john iv]

It's about 300GB savings over the mame chds (non-software list).

[haynor666]

That's lot of disk space 

[Roman]

If you can't wait till next year and really need deep/full integrity check support for delta chds, you can download this build:
https://mamedev.emulab.it/clrmamepro/binaries/cmpro_deltaverify.7z
and unpack/replace you cmpro64.exe with it

[haynor666]

I did some tests and appears to be working correctly but of course not all chds are converted.

[Kingseiya]

I converted the CHDs to deltas, the only errors I found were these:

[Roman]

well....guess we all have to wait till MAME team fixes the chdman issue sooner or later

https://github.com/mamedev/mame/issues/11675

[john iv]

Well yes, since cmpro does a "chdman verify -i %1" command which would fail on deltas....it would require "chdman verify -i %1 -ip %2" where %2 gets replaced with the parent chd filename...but that's currently not supported (but on the to do list).
So...for delta the deep check won't work....but as I said: currently nobody is using delta chds since there are some open issues with them on chdman side, see https://github.com/mamedev/mame/issues/11675

Hi Roman, in the course of investigating some of the malformed delta chd creations, I tried to use cmpro to do validity checks on my existing chds and hit this problem above w/ a new commandline param needed for delta chd verification.  Is that feature mature enough to release into a full build at this point?  Thanks -

[Roman]

You need to use https://mamedev.emulab.it/clrmamepro/binaries/cmpro_deltaverify.7z
which is rock stable
Real life job currently takes all my time.....