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  1. #61
    Member chornobyl's Avatar
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    7-Zip 4.66 alpha was released.

    7-Zip for 32-bit Windows:
    http://dl.7-zip.org/7z466a.exe

    7-Zip for 64-bit Windows x64:
    http://dl.7-zip.org/7z466a-x64.msi

    What's new:
    - 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
    - 7-Zip now can open/copy/compress disk images (like \\.\c: ) from \\.\ folder.
    - 7-Zip File Manager now doesn't use temp files to open nested archives
    stored without compression.
    - New -scrc switch to calculate total CRC-32 during extracting / testing.
    - Some bugs were fixed.

    Don't use this alpha version for important data. Call "Test" command after each compressing operation.
    Last edited by chornobyl; 27th March 2009 at 12:10.

  2. #62
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    7-Zip now can restore some deleted files from NTFS.
    1) type \\.\ in address bar.
    2) Open the volume. Sometimes system doesn't allow to open locked volumes.
    3) Check [DELETED] folder.

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    I'm sorry, but I don't get it.
    - 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
    - 7-Zip now can open/copy/compress disk images (like \\.\c: ) from \\.\ folder.
    I don't understand. Does this mean 7-zip can handle 'compressed files' (the blue files) in NTFS partitions under windows XP? I'm at a loss here.

  4. #64
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    Quote Originally Posted by DeathTheSheep View Post
    I'm sorry, but I don't get it.

    I don't understand. Does this mean 7-zip can handle 'compressed files' (the blue files) in NTFS partitions under windows XP? I'm at a loss here.
    No.
    This function is somewhat WinImage alike function IMHO.

  5. #65
    Member chornobyl's Avatar
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    Additional notes.
    7-Zip File Manager can open drive images (MBR), like:
    \\.\PhysicalDrive0\
    or you can it compress:
    7z a z:\a.7z \\.\PhysicalDrive0
    But windows usually always writes to disk, so probably some data can be incorrect.
    That is amazing, 7-zip can even see my linux partition
    Last edited by chornobyl; 22nd October 2009 at 18:45.

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    Igor just released the new version including LZMA2!

    http://sourceforge.net/forum/forum.p...forum_id=45797

    7-Zip 9.00 alpha was released.

    7-Zip for 32-bit Windows:
    http://dl.7-zip.org/7z900a.exe

    7-Zip for 64-bit Windows x64:
    http://dl.7-zip.org/7z900a-x64.msi

    What's new:
    - 7-Zip now supports LZMA2 compression method.
    - 7-Zip now supports XZ archives.
    - 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
    - 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
    - 7-Zip now can open/copy/compress disk images (like \\.\c from \\.\ folder.
    - 7-Zip File Manager now doesn't use temp files to open nested archives
    stored without compression.
    - New -scrc switch to calculate total CRC-32 during extracting / testing.
    - Some bugs were fixed.

    Don't use this alpha version for important data. Call "Test" command after each compressing operation.


    XZ format provides one file->one file compression (like, gzip and bzip2):
    http://tukaani.org/xz/xz-file-format.txt

    If you have access to Posix/Linux systems, please check the compatibility between XZ Utils and 7-Zip. Just create some XZ archives with one program, and try to extract with another.
    You can get XZ Utils from:
    http://tukaani.org/xz/

  7. #67
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    Great news! Maybe today I'll test XZ archives under Linux and BSD.

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    It's a pitty there is no stand-alone 7za.exe
    This makes it much harder to use both versions together : v9.00 for testing and v4.65 for real backups...

  9. #69
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    i think 7za.exe will be releases with beta..

  10. #70
    Member m^2's Avatar
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    Quote Originally Posted by pat357 View Post
    It's a pitty there is no stand-alone 7za.exe
    This makes it much harder to use both versions together : v9.00 for testing and v4.65 for real backups...
    That's a very bad news.
    Why did Igor do this?

  11. #71
    Member Skymmer's Avatar
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    Quote Originally Posted by pat357 View Post
    It's a pitty there is no stand-alone 7za.exe
    This makes it much harder to use both versions together : v9.00 for testing and v4.65 for real backups...
    You can extract 7z900a.exe NSIS distr with current version of 7-zip and just copy 7z.dll and 7z.exe to some folder.

  12. #72
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    Quote Originally Posted by Skymmer View Post
    You can extract 7z900a.exe NSIS distr with current version of 7-zip and just copy 7z.dll and 7z.exe to some folder.
    and rename 7z.exe to 7z9.exe so you can test both..

  13. #73
    Member chornobyl's Avatar
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    7-Zip 9.01 alpha

    7-Zip 9.01 alpha was released.

    7-Zip for 32-bit Windows:
    http://dl.7-zip.org/7z901.exe

    7-Zip for 64-bit Windows x64:
    http://dl.7-zip.org/7z901-x64.msi

    What's new after 7-Zip 9.00 alpha:
    - A memory leak in LZMA2 code was fixed.
    - Some bugs were fixed.

    What's new after 7-zip 4.65:
    - 7-Zip now supports LZMA2 compression method.
    - 7-Zip now supports XZ archives.
    - 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
    - 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
    - 7-Zip now can open/copy/compress disk images (like \\.\c: ) from \\.\ folder.
    - 7-Zip File Manager now doesn't use temp files to open nested archives
    stored without compression.
    - New -scrc switch to calculate total CRC-32 during extracting / testing.
    - Some bugs were fixed.

    Don't use this alpha version for important data. Call "Test" command after each compressing operation.
    Also now it's possible to use Delta filter:
    7z a a.7z 01.wav -m0=delta:4 -m1=lzma

  14. #74
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    still DOC is not updated..

  15. #75
    Member chornobyl's Avatar
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    check out awesome usefullnes level of archive i make
    ps: pass is just hit enter
    Attached Files Attached Files
    • File Type: 7z 1.7z (270 Bytes, 472 views)

  16. #76
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    Quote Originally Posted by maadjordan View Post
    and rename 7z.exe to 7z9.exe so you can test both..
    What about the 7z.dll ?
    I'd like to have both v4.65 & v9.01 in my "path" environment.
    I can't rename the v9.01 .dll ... can I ?

  17. #77
    Member Skymmer's Avatar
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    Quote Originally Posted by maadjordan View Post
    and rename 7z.exe to 7z9.exe so you can test both..
    maadjordan, excuse me but I don't understand the purpose of this advise. For example you have the current stable version 4.65 in C:\ARX\7zip_465 then you put 7z.exe and 7z.dll from v9.00 to C:\ARX\7zip_900. Now you can use v4.65 from C:\ARX\7zip_465 and test v9.00 from C:\ARX\7zip_900. So whats the purpose of renaming 7z.exe in C:\ARX\7zip_900 ?

    EDIT: Damn, pat357 you were faster
    If you want to have both versions in one folder then yes, you need to rename 7z.exe to f.e. 7z9.exe file and you also need to be little bit familiar with some HEX editor. Just change 7z.dll (there must be only one occurrence) to f.e. 9z.dll inside the 7z9.exe (or how you rename it) and also don't forget to rename 7z.dll (from v9.00) to changed name. 9z.dll in our case. Just checked and its works
    Last edited by Skymmer; 19th April 2009 at 19:41.

  18. #78
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    Also now it's possible to use Delta filter:
    7z a a.7z 01.wav -m0=delta:4 -m1=lzma

  19. #79
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    But still winrar seems to outperform 7z on wave files. Interesting...

  20. #80
    Programmer osmanturan's Avatar
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    WinRAR does not use only delta filtering...For wave files RAR has a specialized (but relatively weak) codec. For the other kind of data, it uses delta filtering + PPM or LZH.
    BIT Archiver homepage: www.osmanturan.com

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    Any info about the "delta" parameters ?
    your example was like "delta:4"... what is the meaning of :4 ?

  22. #82
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    Quote Originally Posted by Skymmer View Post
    EDIT: Damn, pat357 you were faster
    If you want to have both versions in one folder then yes, you need to rename 7z.exe to f.e. 7z9.exe file and you also need to be little bit familiar with some HEX editor. Just change 7z.dll (there must be only one occurrence) to f.e. 9z.dll inside the 7z9.exe (or how you rename it) and also don't forget to rename 7z.dll (from v9.00) to changed name. 9z.dll in our case. Just checked and its works
    Thanks for the tip !
    Now it works the way I want !

  23. #83
    Programmer Bulat Ziganshin's Avatar
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    Quote Originally Posted by pat357 View Post
    Any info about the "delta" parameters ?
    your example was like "delta:4"... what is the meaning of :4 ?
    i think it's number of bytes in sample. so delta:4 is eq to my mm:1*32

  24. #84
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    7-Zip 9.02 alpha was released.

    7-Zip for 32-bit Windows:
    http://dl.7-zip.org/7z902.exe

    7-Zip for 64-bit Windows x64:
    http://dl.7-zip.org/7z902-x64.msi

    What's new after 7-Zip 9.01 alpha:
    - Some bugs were fixed.

  25. #85
    Member chornobyl's Avatar
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    7-Zip 9.03 alpha

    Quote Originally Posted by Igor Pavlov
    7-Zip 9.03 alpha was released.

    7-Zip for 32-bit Windows:
    http://dl.7-zip.org/7z903.exe

    7-Zip for 64-bit Windows x64:
    http://dl.7-zip.org/7z903-x64.msi

    What's new after 7-Zip 9.02 alpha:
    - 7-Zip now can update solid .7z archives.
    - Some bugs were fixed.

    What's new after 7-zip 4.65:
    - 7-Zip now can update solid .7z archives.
    - 7-Zip now supports LZMA2 compression method.
    - 7-Zip now supports XZ archives.
    - 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
    - 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
    - 7-Zip now can open/copy/compress disk images (like \\.\c: ) from \\.\ folder.
    - 7-Zip File Manager now doesn't use temp files to open nested archives
    stored without compression.
    - New -scrc switch to calculate total CRC-32 during extracting / testing.
    - Some bugs were fixed.

    Don't use this alpha version for important data. Call "Test" command after each compressing operation.

  26. #86
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    What's new after 7-Zip 9.02 alpha:
    - 7-Zip now can update solid .7z archives.
    The Day Has Come.

  27. #87
    Member Vacon's Avatar
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    Hello everyone,

    yeah, now I'm a believer!

    Best regards!

  28. #88
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    - LZMA2 SFX support
    - LZMA2 codec merged to 7z.dll
    - ISO Bug is now solved

  29. #89
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    A general question about 7-Zip.

    How can you achieve LZMA:29? How much memory does it require?

    I've stumbled across Nero 9 packed with LZMA:29 [screenshot]. Normally I wouldn't stress this up, but the compression results simply amazed me.

    The original size of this giant fat wobbly limp-wristed application is 1,83 GB. FreeArc -m9x -s results in ~350 MB, 7-Zip -mx9 -s does slightly worse.

    The size of LZMA:29 7z is 250 MB. A hundred megabytes wiped off for no decompression speed loss!

    I tried to google it myself, obviously, as well as to lurk all the LZMA manuals I had, but ended up with nothing at all that could even slightly explain this mode.

    Now, when encode.su is finally functioning, I would like to ask you about this thing And, yes, if you feel like you need to look at the archive yourself, I can upload it for you, although it contains a keygen, which apparently is being detected as a trojan. Surprise surprise.

  30. #90
    Member chornobyl's Avatar
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    FreeArc -m9x -s results in ~350 MB
    did rep where in use?

    <ot>max memory consumtion i can get 1536TB</ot>
    Last edited by chornobyl; 22nd October 2009 at 18:47.

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