Feature Request: sit Format
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It's been asked for several times before by various 7-Zip entuhusiasts but I cannot find any response to their forum posts so I thought I'd make a request too.
Please could you incorporate the popular *.sit format used primarily it seems on the MAC.
This will save us all having to endure the adware-riddled software from other sources.
Thanks for listening!
It has been answered before quite a few times, but the stuffit format is proprietary and there is no source code available. Not going to happen.
I just found this piece of donateware which will extract .sit files (which I tried, and works great). The fifth question on that page has you download 'stuffit5.engine-5.1.dll' to add this functionality. So, now we have the question: How come *he* has the ability to support .sit files, but 7-Zip doesn't? (Note: this question is coming from the angle that I REALLY like 7-Zip, and some of us have gotten stuck needing to uncompress those gawd-awful .sit files.)
*** !!! ***
Igor,
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please update the FAQ (RAR create, SIT support,
RK support, ...
"I just found this piece of donateware which will extract .sit files (which I tried, and works great)."
Where?
I would imagine that the stuffit dll in question is not entirely legal to download which is why the program doesn't include it in the program to begin with.
Does the dll in question extract sitx files or just the older sit files?
*.sit format = macintosh!
Igor - Is it at all possible to support such a format???!
>The fifth question on that page has you download 'stuffit5.engine-5.1.dll' to add this functionality.
Which *page*? During install or on some website that packs warez?
Here you can download stuffit5.engine-5.1.dll
http://www.extractnow.com/stuffit5.engine-5.1.dll
Neat! Didn't know that there is a third-party tool that handles SIT archives. I think it's possible that this ExtractNow app (and its SIT support) is perfectly legal. After all, maybe Allume Systems sells licenses for this DLL to developers?!
Still, I'm not sure if this tool can handle the newest SIT and SITX archives. Someone should test this. ;-)
> some of us have gotten stuck needing to uncompress those gawd-awful .sit files
Indeed.
If mac users can switch to intel processors, I see
no reason why they should settle for a commercial format like .sit.
Let's forget about white ravens like .sit.
In favour of... the open source format .7z!
>Please could you incorporate the popular *.sit format used primarily it seems on the MAC.
If you want a tool that can decompress a lot of formats try:
IZARC 3115KB (7-ZIP, A, ACE, ARC, ARJ, B64, BH, BIN, BZ2, BZA, C2D, CDI, CAB, CPIO, DEB, ENC, GCA, GZ, GZA, HA, IMG, ISO, JAR, LHA, LIB, LZH, MBF, MDF, MIM, NRG, PAK, PDI, PK3, RAR, RPM, TAR, TAZ, TBZ, TGZ, TZ, UUE, WAR, XXE, YZ1, Z, ZIP, ZOO) or
TugZip 3920KB (ZIP, 7-ZIP, A, ACE, ARC, ARJ, BH, BZ2, CAB, CPIO, DEB, GCA, GZ, IMP, JAR, LHA (LZH), LIB, RAR, RPM, SQX, TAR, TGZ, TBZ, TAZ, YZ1, ZOO, BIN, C2D, IMG, ISO, NRG)
Unfortunately the Stuffit format is proprietary.
>Still, I'm not sure if this tool can handle the newest SIT and SITX archives. Someone should test this. ;-)
The SITX format was introduced in the 7.0 version (http://en.wikipedia.org/wiki/Stuffit)
Somewhat off-topic, but would it be of any value to code a free/open source StuffIt extraction tool? Or would it be a complete waste of time? I mean, I expect it to be a *lot* of work to create an extraction tool without specs (not to mention that it would probably always have a more or less experimental status because of that). Even more, one would either have to let two programmers do the work (one to reverse-engineer the specs from the code, the other one to implement it from those specs), or obe would have to avoid looking at Allume's code completely, by creating lots of archives and analyzing and comparing the original data and the archived data.
Does anyone of you encounter so many SIT/SITX archives in the wild that it would be worthwhile to spend a considerable amount of time on it?
"[...] would it be of any value to code a free/open source StuffIt extraction tool? Or would it be a complete waste of time?"
IMHO it's not worth it. StuffIt and StuffIt X are very much obsolete. Since MacOS 10.4 StuffIt Expander doesn't even come bundled with the operating system, making StuffIt compression even more useless.
StuffIt is proprietary. It is a closed format. It can only be used on recent Win32 and Mac versions. In most cases it doesn't compress any better than 7-Zip. We should not even support Allume by spreading their useless format even more. It's Yet Another Archive Format.
If you really *must* extract SIT/SITX archives, then just download Allume's extractor (it's free of charge) or this ExtractNow application mentioned above.
No need to mess with a mostly undocumented format.
The new stuffit does have the best jpg compression(according to maximumcompression), so it isn't entirely obsolete. The .sit format is obsolete, but the .sitx format is still an adequate, if not popular, compression format. However, to reverse engineer it would be take up a lot of time and energy that would probably be better spent improving .7z compression.