TI8: MULTIPLE CDs/DVDs = corrupt archive

Discussion in 'Acronis True Image Product Line' started by dgrrr, Nov 24, 2005.

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  1. dgrrr

    dgrrr Registered Member

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    I'm using True Image Enterprise Server 8.

    I can extract images from an external HD fine, whether it was saved all in one tib file or in multiple tib files.

    Likewise I can extract images FROM one or multiple TIB files, FROM a SINGLE DVD.

    BUT --

    if my tib files are saved on MULTIPLE DISCS, whether CDs or DVDs, I get corrupt archive messages.

    I tried this using two different readers (one was CDROM, the other was DVDROM)


    Another clue -- If I have just booted to Acronis using the boot cd, the TIB files appear under the cdrom / dvd drive -- but once I try to check or extract the archive and then get teh "corrupt image/archive" or "possible bad media" message, from that moment on, the tib files are invisible until I eject them from the drive again and relaod the disk.

    Remember, tho, -- the image that's one tib file on one DVD works fine!


    Any ideas what the problem might be?


    thanks!
     
  2. Ozmaniac

    Ozmaniac Registered Member

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    Are you trying to restore a full image from a number of DVDs, or are you trying to explore an image on one of a set of DVDs so that you can find and restore files or folders?

    If you are trying to explore the images, you cannot do this until all of the images are in the same folder - not spread across several DVDs. You will need to copy them onto a hard disk, internal or external, before you can explore.:cool:
     
  3. dgrrr

    dgrrr Registered Member

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    RESTORING, not exploring....

    No, I am RESTORING, not exploring...

    Besides, if I have a totally faq'd HD, I'd want to be able to restore from DVDs, -- otherwise I'd have to create a special partition and then copy the contents of all the dvds.. what a pain!

    The restoral process asks me to swap in several disks BEFORE it starts restoring (starst with the last, then the first, then the 4th, then usually fails somethere around then - with THREE TOTALLY DIFFERENT archives (diff source PCs)
     
  4. dgrrr

    dgrrr Registered Member

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    So tib files on DVDs/CDs are useless, unless you copy them to hd first?

    TI8 -- apparently, the reason none of my backups to multiple CDs or DVDs work, is because all the tib files have to be in the same directory for either Check, Explore or Restore to work!

    They all work fine if I have all the tibs on one DVD, or in the same folder on an external HD. But if they're on separate discs, OR if I simply put even just ONE tib file in separate folders, it doesn't work.

    Restore fails (gives message about corrupt archive), whereas Check or Explore just dumbly ask me to retry to find the next tib file in the same folder... There's no way to tell it, Look in the next folder, dumbass!


    OKay, so I guess I could FORCE this crippled program to work, by creating a partition myself, with a win98 boot disk (!), formatting the partition, copying all the tib files to it from separate dvds, and then booting to Acronis to extract to a SEPARATE partition of the hd -- IF I EVEN HAVE THE ROOM AT THAT POINT!

    Surely this program can't be this bad?
     
  5. MageJubi

    MageJubi Guest

    Re: So tib files on DVDs/CDs are useless, unless you copy them to hd first?

    Strange. I never had that problem with TI8. I put my .tib on a dvd and the Recovery program on a cd--the .tib was not in a folder, just on the disk...When the recovery program asked for the .tib file, I removed the cd, replaced it with the dvd, and directed it to the .tib on the dvd. I then decided to install the recovery program on a dvd instead of a cd, along with my .tib to make it easier. Note however, if you move the .tib file it seems to get corrupted. Save your backup.tib directly to your cd/dvd.
     
  6. Menorcaman

    Menorcaman Retired Moderator

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    Re: So tib files on DVDs/CDs are useless, unless you copy them to hd first?

    Hello dgrrr,

    Not so. The only time the .tib files need to reside in the same folder is when you want to Explore the image.

    How are you imaging to DVD? Are you using the "direct" method and, if so, what type of media and UDF packet writing software are you using? If you are using the indirect "two-step" method then please advise what manual split size you are using and whether you are burning the .tib files as a DVD-ROM (ISO) or DVD-ROM (UDF) compilation.

    Regards
     
    Last edited: Nov 30, 2005
  7. dgrrr

    dgrrr Registered Member

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    Works if I copy TIBS to HD first!

    (1) I created archives of 700MB tib files, whether putting them on DVDRs or CDRs

    (2) I imaged to an external hard drive while on site, and then took the HD home, and used Nero Create Data CD/DVD to create the optical discs. I can't tell if that process uses DVD-ROM (ISO) or DVD-ROM (UDF) -- becuase I used the wizard. But the default seems to be DVD-ROM (ISO).

    (3) BUT get this -- I AM able to copy the tib files FROM the set of CDs I created, onto a hard draive, and then verify / check the archive successfully.

    I'm checking to see if the same is true of the DVDs.
     
  8. Acronis Support

    Acronis Support Acronis Support Staff

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    Re: So tib files on DVDs/CDs are useless, unless you copy them to hd first?

    Hello dgrrr,

    Thank you for choosing Acronis Remote Server Backup Software.

    Could you please run Acronis True Image 8.0 Enterprise Server for Windows in Windows and verify your image .tib files integrity there?

    Please be aware that if you use two-step method for DVD-writing, you need to finalize DVD after burning.

    Please note also that if you copy all .tib files from DVD discs to your hard drive, you should save them in the same directory (folder).

    Thank you.
    --
    Tatyana Tsyngaeva
     
  9. dgrrr

    dgrrr Registered Member

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    two-step method?

    Could you explain what you mean by the "two-step method"?

    FYI the dvd's were finalized in "ISO 9660/ Joliet (mode 1)"
     
  10. Menorcaman

    Menorcaman Retired Moderator

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    Re: two-step method?

    The "two-step" method is what you're currently using i.e. imaging a split image to hard drive and then burning a number of .tib files to DVD as a DVD-ROM compilation. See <Acronis True Image Online FAQ #27> for more details. As a side issue, you may want to consider using 635MB as the split size and burn up to a maximum of 7 .tib files per DVD. This is a more efficient use of the DVD's available space than the 6 x 700MB you are currently using.

    Here are a few links to previous threads on the subject of imaging to DVD (you'll find plenty more if you carry out a Forum search for the term Nero):

    DVD Burning With Nero
    DVD File Size
    Burning Images to DVD
    Imaging to DVDs

    It would also help if you let us know which version of Nero you are using e.g. Nero OEM version, Nero Reloaded or Nero Ultra. Also, how are you starting the DVD-ROM compilation process - via Nero's basic interface, Nero Express or Nero StartSmart? Providing this info may, hopefully, allow us to give you a few more pointers.

    Regards
     
  11. dgrrr

    dgrrr Registered Member

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    Nero Burning ROM Enterprise Edition v6605

    I use Nero Smartstart, because there are so many options I just figure I better use the defaults so I dont' **** up the data or readability by tweaking.

    I choose the "burn data DVD" choice.

    It's not clear based on the faqs / forum posts you referenced as to whether, ASSUMING I'm using the two step process (using above nero ver), is it better to do a DATA DVD burn or to use the UDF template ("DVDROM (UDF)")?

    Also -- recommend users use 2 to 2.4 speed... I notice that my burner goes from 6x (minimum) to 16x (max)... Should I use minimum?

    thx for your help & pateince with all us crybabies, Menorcaman!
    <edit - I'm not being smart -- I mean it. You have to answer the same Q's all the time!, LOL>
     
    Last edited: Dec 6, 2005
  12. dgrrr

    dgrrr Registered Member

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    Another thread in the dark...

    MENORCAMAN -- big question.

    As you know, one of my problem TI8 archives extracts fine from HD onto target PC, but fails to extract from DVD onto target PC.

    Apparently, no matter what combination of newer or older PCs / DVD drives I use, I can't get TIB File #4 to copy from DVD to HD. XP tells me there is a cyclical redundancy check when I try to copy it over.

    I'm going to do some tests -- burning DVD data EXACTLY as said. Slowest speed, etc.

    BUT FIRST -- why on EARTH didn't Nero's "data verification" say anything!!!
     
    Last edited: Dec 8, 2005
  13. Menorcaman

    Menorcaman Retired Moderator

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    Hello dgrrr,

    Sorry for not getting back to you earlier but I've been busy testing TI 9 Build 2323. I will attempt to address both of your posts in this one reply.

    If you keep the split file size below 2000 MB then you can use "Make Data DVD", otherwise you will need to select the "Make UDF DVD" option (a UDF DVD will allow you to burn a file up to 4.3 GB in size).

    Whew! that's pretty rapid for DVD recording. My own rule of thumb is to burn data disks at around half the maximum recording speed of the burner or optical media, whichever is the lesser.

    O.K. but make sure you're not burning Multi Session disks and check the "Finalize DVD (No further writing possible!)" tickbox on the Burn tab. See attached screenshot.

    Nero doesn't care whether the disk is finalized or not but True Image does.

    Regards
     

    Attached Files:

  14. dgrrr

    dgrrr Registered Member

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    data verif...

    My question about Nero's "Data Verification" feature is ....

    Since Data Verification definitely did run, and does sometimes tell me that there's bad sectors...

    Why wouldn't it say that there was bad data on the disc?

    (I always use "Finalize Disc", "No Multisession" and "Verify Data")

    thx
     
  15. Menorcaman

    Menorcaman Retired Moderator

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    Re: data verif...

    I assume you mean that Nero's Verify function does sometimes report a faulty burn but on many occassions it doesn't whilst True Image's verification does? In which case, now that you've confirmed that the disks are always finalised, I honestly have no idea other than TI's Check Image function seems to be very (overly?) sensitive to system timing.

    How did you get on with reduced speed burning?

    Regards
     
  16. dgrrr

    dgrrr Registered Member

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    thanks!

    Thanks for the quick reply! From what I"ve read, TI9 must be keeping you busy.

    OK, so far, the slower burning speed appears to have done the trick. (6x, using DVD ISO format.) I just restored a HD from multiple DVDs. And I ran CDCHECK on the old (bad) DVD, and it confirms:
    error;win32:Data error (cyclic redundancy check).

    So in my case, it was bad DVD burning, on more than one archive. Sorry it was something so simple -- this is the first time when I have found that NERO failed to identify a bad burn in it's post-burning check - that's why I didn't consider a bad burn.


    Remaining questions:

    (1) In cases where I have a choice (burinng LESS than 2000Mb tib files), would you recommend UDF or DVD ISO burning? (which is BETTER, given the CHOICE?)

    (2) Isn't 6x a weird minimum speed? SHouldn't the min speed be a multiple (divisor?) of the max speed? (dunno where I heard about that criterion)

    (3) Regarding burning data cds/dvds in general --
    If I am finalizing my discs, and I have have enuf data to fill up 1.5 discs...
    ... Is there any reason to but put an equal amount on both discs (fill 75% on both discs), as opposed to filling up the first disc to 100%, adn the 2nd disk to 50%)?
     
  17. Menorcaman

    Menorcaman Retired Moderator

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    Re: thanks!

    Hello dgrrr,

    I'm pleased to hear that you finally managed to burn a good image to DVD. It's often the simple things in life that cause us the problems :D.

    As for your other questions, I will try to answer them the best I can.

    As far as I'm aware, there is no difference in burn reliability although the ISO file format is probably more compatable with various O/S's and some older CD/DVD players.

    Yes, it does seem a bit strange. I wonder whether it's peculiar to your make of DVD burner or if this is now standard practice for high speed recorders? Perhaps other users could confirm? However, the maximum burn speed is normally automatically limited to the maximum speed rating of the optical media being used at the time.

    It's not something I find I need to do. If using the indirect, two-step, method I usually set the split size to 1492 MB and burn up to three .tib files per DVD-ROM (ISO) disk. This more or less maximizes the available space without overburning the DVD. The only thing I will say is that, if your recorder/chosen media is prone to bad burning, limiting the amount of data per disk may reduce the likelyhood of this occuring. Recording to the outer tracks (maximum capacity) of a CD/DVD results in the fastest rotational speed/Data Transfer Rate and the greatest vibration. Neither of which are conducive to reliable burning if using "iffy" recorders or media.

    Regards
     
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