cool, will test it out with that setting sometimes soon.
@diskzip again, your file that you provided seems to be created with 7z.exe. File created by DiskZip does not have these filters used and has 150 MB larger size. There is no special switch in 7zip to make it use itanium filter for instance, it is part of bcj2 and used when 7z.exe detects appropriate executable. When you use 7z.exe to create your folder, it will automatically apply itanium filter when it detects such executable.
Same goes for the use of multimedia delta filter. Diskzip does not use delta filters at all as it needs 7z.exe to determine what file to use it on. As such, DiskZip will always create different/worse results compared to 7zip.
Please let me know what switch to use in order to replicate file you have sent as example of DiskZip compression.
As to “your” zipx compression, it is actually WinZip Zipx compression. You are aware that zipx is not solid compression and that it creates significantly larger files than 7z? When it comes to special codecs - PA format has better codecs for text, jpeg, mp3 compared to WinZip zipx (specifically whats unique compared to WinRar and 7zip) together with everything else that makes PA format unique. It is considerably faster while having considerably better compression at the same time.
So yeah, we try WinZips zipx every time we add new codec to PA format and benchmark it against it, as well as 7zip, WinRAR, FreeArc as well as speciality compressors like precomp. Obviously we try to do something better, even if we do not succeed each time.
And since you obviously consider diskzip to be on par with other compression applications, why not submit it for testing at:
That way you will have independent tests to back up those claims of first class citizen. Problem is that in tests that I do with DiskZip, it creates larger files than 7zip but I would love to be proven wrong. I am sure @Stephan will be helpful as usual.
@diskzip using forced settings on 7z.dll doesnt work well, it will apply them to all files and worsen compression for everything. Unless you select settings for each file separately. So it is not a solution except for hand picked sample.
So what setting did you use on archive you sent, I am pretty sure it was created by 7z.exe and not diskzip? You can see it by type of filters used.
As to the zipx, it has significantly worse compression for anything (not to mention mt1 or mt2 in mI ost cases) but jpeg and wav, so so again users would have to compress files separately and hand pick which go into zipx and which goes into 7z.
With Pa, we added extension sort in latest version and you can use 2g window, so result is 2645, it is easily repeatable…
We filter all these files automatically and apply over 15 different codecs and filters, so generally it will produce better results in most real life cases than using different format for each file. Realistically you cant compare that to using 7z dll with bcj2 on all files. For people using 7z format, best bet is to use 7z.exe and not 3Rd party tools due yo the file detection that 7z.exe uses, your result will never be as good.
@mwb1100 we had some problems with moving these to bottom due to the number of new panels possible with explorer mode on, it simply goes crazy when more than 3-4 panels are possible. For next major version we are going to solve this.
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