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dvd-burning interview questions

Top dvd-burning frequently asked interview questions

How do I close DVDs when burning on Windows 7?

When I burn DVDs using Explorer on Windows 7, there is no option of closing the DVD. This results in some MBs of free space after the DVD has been written (multisession). How do I close the DVD on Windows 7?


Source: (StackOverflow)

How are commercial DVD's burned? [closed]

I'm not talking about the DVD-R's here. When you buy retail software and DVD movies from the store for example, how is that DVD burned onto the original disc? What would I need if I want to burn those type of "commericial" discs? (Is there a special device similar to a DVD burner for example, for this?)


Source: (StackOverflow)

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Appending to non re-writable DVD

Can you still burn/write additional files to a used non re-writable DVD?

For example, after I burn a 900 MB .iso to a DVD, can I still write additional files to that same DVD in the future?


Source: (StackOverflow)

How to check if a blank DVD is damaged?

Today I burned a DVD, but when I insert it into my external DVD drive I am told that it is blank, but if I try to burn something else on it, it simply gets ejected.

The DVD in question is a -R Dual Layer, which my DVD drive has no problems in handling. The DVD drive is a Samsung SE-208AB.

Is there a way to check exactly what kind of problem this is?


Source: (StackOverflow)

How optical media type is identified by the burner?

How CD-DVD Burning apps & the drive are able to identify the media type in the drive i.e. whether the inserted disk is CD-ROM or DVD-R or DVD-RW and so on?

I understand that the session info is written on the disk, however does information about media type pre-encoded on the media somewhere say in Lead-In area or so in some way?

I have searched the net but this specific info does not seem to be clearly available.


Source: (StackOverflow)

Are there any downsides to leaving a DVD "open" after burning?

When burning a DVD, all the programs have an options to "leave the DVD open", so that files can be further added to the disc.

Are there any downsides to that? In other words: what are the reasons I would want to "close" the disc, other than making it immutable (and wasting the remaining free space on disk)?


Source: (StackOverflow)

How can I burn many movies to a video DVD?

I once bought a DVD containing four 90-minute-long movies. Now I'm trying to write such a DVD, but don't know how to do it.

I tried to use DVD-Flick, but it says the disc is 98% used for a single 90-minute movie. My movies are 700MB dvdrips (AVI).

How can I put four movies on one disc?


Source: (StackOverflow)

Burning DVDs to disk - what audio codec should I pick?

I finally got around to burning all the DVDs to files, so that I can get rid of all the plastic media once and for all. Most DVDs have several audio codecs available (2 channel stereo or 5.1 Dolby). I have a standard HDTV and do not have a Dolby 5.1 setup.

Should I burn the DVDs with the 2 channel stereo audio codec, given the situation? Will the audio quality be worse?


Source: (StackOverflow)

DVD/CD burning .zip: is it more reliable, faster, longer lasting to burn a zip of files rather than the files as a folder?

Is it more reliable, faster, longer lasting to burn to CD/DVD a zip (or a few large zips) of files rather than the files as a folder?

Just thinking if 1000s of small files would not be as efficiently recorded compared with one or a few large zips.

Also, even after the burning program verifies the disc, I also use Beyond Compare to compare the files with those on the disc. Always binary compares as identical but I hear the drive stuttering presumably as the head is being shifted only slightly each time to seek the next file, which leads me to think that its best to make one or more zips and copy those locally to compare. Or is it that burning invidual files to the disc is not as readable which causes the head to stutter.

There aren't any problems, my disc burns are reliable, just thinking more of efficiency and longevity, the discs burn and verify fast enough on my 18x DVD burner.

I'm using ImgBurn mostly. Also used Nero in the past.

I burn whole discs closed, finalised. Not sure which write mode but would think Disc At Once from a temporary cached image made by the burning program would be the most reliable.


Source: (StackOverflow)

How to use DVD+RW (UDF) both in windows and linux?

I have dvd+rw disk. I would like to create UDF file system on it to use with windows 7 (and newer) and gentoo both. How must I prepare media and what commands should use to mount it in linux?

What I tried:

  1. In Windows:

    format /fs:UDF D:
    

    now windows is able to work with the media. Gentoo can safely read it in ro mode.

    On gentoo (as described in linux Documentation):

    pktsetup 0 /dev/sr0
    mount -t udf -o rw,noatime /dev/pktcdvd/pkcdvd0 /mnt
    cp <some> /mnt
    umount /mnt
    pktsetup -d 0
    

    after that media is broken - windows suggest to format it, gentoo can't locate superblock to mount.

  2. In Windows:

    format /fs:UDF D:
    

    now windows is able to work with the media Gentoo can safely read it in ro mode.

    On gentoo:

    mount -t udf -o rw,noatime /dev/sr0 /mnt
    cp <some> /mnt
    umount /mnt 
    

    after that windows can't read the media, but gentoo is ok.

  3. In gentoo:

    mkudffs /dev/sr0
    mount -t udf -o rw,noatime /dev/sr0 /mnt
    cp <some> /mnt
    umount /mnt
    

    gentoo works fine with media, Windows can read the media, but it can't write or delete files on it.

  4. In gentoo:

    mkudffs -r 0150 --media-type=dvd /dev/sr0
    mount -t udf -o rw,noatime /dev/sr0 /mnt
    

    mounts as readonly

    mount -t udf -o remount,rw /dev/sr0 /mnt
    cp <some> /mnt
    umount /mnt
    

    gentoo works fine with media, Windows can read the media, but it can't write or delete files on it.

  5. In gentoo:

    pktsetup 0 /dev/sr0
    mkudffs /dev/pktcdvd/pktcdvd0
    mount -t udf -o rw,noatime /dev/pktcdvd/pkcdvd0 /mnt
    

    missing partition (can't read superblock) and windows can do nothing with the media.

  6. Also, I tried to use "forget" and "ignore" in uid and gid options of mount, but gentoo's mount had problems with it:

    sudo mount -t udf -o rw,uid=frget,uid=ignore,gid=ignore,gid=forget /dev/sr0 /media/default
    mount: failed to parse mount options
    

Source: (StackOverflow)

How to prevent DVD-R/W "endless reads" with AoA DVD Copy?

I have a Windows 7 Ultimate machine with a DVD-R/W installed. It been working quite reliably – except for now.

I'm in the process of copying a series of DVDs using a program called "AoA DVD Copy" that allows me to read a DVD from my DVD drive, store that to the hard disk location and later putting a DVD RW into the drive write the contents previously read onto the DVD-RW. This series of DVDs I'm copying numbers five volumes. Volume 1 and 2 copied without a problem. Volume 3-5 all have the same problem: they start copying and get "stuck" – although I have copied the entire series successfully a number of times in the past.

The curious thing: once a DVD gets "stuck" the only way of stopping the constant DVD activity is either by killing the AoA process or by physically ejecting the DVD. From that point onwards the DVD cannot be accessed – when inserting it into the DVD drive, it starts to endlessly read and cannot be accessed in any way. I'm not able to reformat it either. I have tried disabling the drive, inserting the DVD, and then re-enabling the drive. Again, once if I try to access the DVD in any way (such as right clicking/format, for example) it gets into the endless read problem I speak of.


Source: (StackOverflow)

Use the 'fresh' / unused area of a rewritable DVD?

When re-using a rewritable DVD, I want to use the unused area of the disc.

So for example, when I burn a 1 GB Linux distro onto a rewritable DVD, and then burn other distro(s) onto the same DVD, it will use the same 1 GB area at the beginning of the DVD surface again and again. When the DVD no longer works, I will have used the 1 GB area at the start of the disc many times, and will have to 'throw away' the rest of the DVD, even though it is not used.

I am thinking that I could somehow modify the ISO, and add some dummy file at the beginning, which would never be read, and so the file possibly being bad / corrupted would not matter, since my actual files are on the fresh area of the DVD. Is this possible?

Photo of partially written DVD

Is there a way around this ?


Source: (StackOverflow)

Reproducing limited DVD copy protection

For those with experience in the file systems and intricacies of video DVDs I apologize for any ignorance on my part. I just encountered something that got me to thinking, as was hoping someone my be able to point me in the right direction in order to reproduce it.

I've run into a DVD video protection scheme that seems to be somewhat effective in stopping casual users making copies. It is fallible though, and can be bypassed by AnyDVD. None the less, I found myself intrigued by the way in which the DVD are "protected". An unprotected ISO of a video DVD is selected then edited by the program. This produces a slightly larger output ISO which can then be burned normally. This protected ISO seems to contain 99 copies of the original VTS_XX.vob video files, their .BUPs and .IFOs, as well as an edited version of the VIDEO_TS.IFO.

In an attempt to recreate this scheme I manually edited the VIDEO_TS.IFO an original unprotected ISO. This did nothing to slow any modern DVD ripping software, leading my to believe that the brunt of the protection lies in they high number of copies of the original .VOB/.BUP/.IFO files. Each of the 99 video files on the protected ISO all seem to play the same video and larger videos, when protected state the the size of the extracted files will be high above that possible for a DVD disk (10-20gigs).

So my main question to those that have more experience, does this sound like some kind of corruption of the underlying UDF file system? And if so, is it reproducible? Any suggested links/reading material regarding any of these topics would be appreciated as well.

For the curious

Original ISO http://www.mediafire.com/?qvcqefvbuuc9iqb

Protected ISO http://www.mediafire.com/?9aq7p6siu5yacuo


Source: (StackOverflow)

Burn DVD when I have vob files only

have some .vob files ( entire VIDEO_TS folder of a DVD but not any other file or folder like AUDIO_TS.. etc) and I want to burn a disc compatible with a DVD player. How can I do this? No dvd burner like powerDVD helped


Source: (StackOverflow)

How to get an external DVD drive to work?

I've bought an external DVD reader (Samsung, USB Slim Portable Optical Drive). But, it couldn't read CDs/DVDs on my PC. When I tried in another PC, it's okay.

What's wrong with my PC? The OS is Windows XP SP2.


Source: (StackOverflow)