Universal Disk Format (UDF) is a file system for computer data storage.

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Booting from UDF formatted USB flash drive

I would like to know if a UDF formatted USB flash drive can boot properly on any computer. Will it also work well under UEFI?
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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 ...
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751 views

How to get Ubuntu 12.04 to recognize the UDF filesystem?

I'm just trying a watch a commercially bought DVD on my laptop, but Ubuntu 12.04 won't recognise UDF: $ sudo mount -t udf /dev/cdrom /media/cdrom mount: unknown filesystem type 'udf' I got the ...
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How to format a flash drive as UDF in Windows 7?

Looks like the integrated format dialog doesn't offer a UDF option; however, Googling tells me that Win7 can both read and write UDF flash drives, so surely it must be able to format them out of the ...
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171 views

Writing to a UDF WORM SD card in Linux

I'm looking into getting some Sandisk 1GB WORM SD cards for archiving things. I assume they appear to the OS as a block device (they're SD, after all). I noticed that mkudffs supports a worm media ...
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Format USB drive to NTFS/FAT from UDF

I formatted a USB drive UDF to boot an ISO image and now I can't find a way to get it back to being in NTFS/FAT or another usable format. Do I need a 3rd party tool?
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135 views

reorder sectors on a block device?

I'm considering backing up some data to DVDs/BDs. (I know about DVDisaster.) I've read somewhere that the outer sectors on a DVD are more likely to wear down than the inner ones. This suggests that ...
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How to format an external hard drive as UDF on a Mac

I have an external USB hard drive that I'd like to format to UDF for cross-compatibility with Windows and Macs. I tried exFAT, but for whatever reason, because of the block size (56KB) of the format, ...
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format external hdd with udf not working on mac os x lion

I formatted my 1tb external drive with the following command: mkudffs --media-type=hd --blocksize=512 /dev/sdb It works on linux but when i plug it in a mac (os x lion 10.7) it tells me The ...
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Windows 7 is not recognizing the UDF filesystem of a CD

I have a UDF CD that I recently received, but I cannot use it. The disc reads fine, but when I open it, I see a single README.txt, that tells me the disk is UDF-formatted, and I need a computer that ...
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Format CD-rom on Windows 7 that Windows 95 can read

I pulled out my ancient Pentium 100Mhz running Windows 95 to play a game from 1996. This game has a critical bug in it that requires a patch. The problem is, the computer has no way to connect to ...
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OS X Lion thinks Windows UDF-formatted external drive as exFAT and tells that the drive is invalid

I've recently bought a Mac, and I want to share my Seagate FreeAgent 1.5 TB external hard drive with both my Mac and my PC. I've searched and found that exFAT or UDF is the way to go to have ...
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In UDF, what's the difference between a volume identifier, volume set identifier, logical volume identifier, and file set identifier?

I see that mkudffs has options for four different identifiers: the logical volume (--lvid), the volume (--vid), the volume set (--vsid), and the file set identifier (--fsid). It, however, gives no ...
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417 views

How can I reliably archive the content of UDF formatted CDs and DVDs

I have been looking into copying the contents of old CDs onto mobile disks in order to save space and preserve the content, since rewritable CDs appear to degrade over time (at least the ones I am ...
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1answer
487 views

UDF filesystem -> Maximum number of files

I am considering partitioning a rather large hard drive with the UDF filesystem for an experiment, and would like to ask if anyone knows the maximum number of files, either by directory, or as a ...
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1answer
841 views

“Correct” way of UDF formatting a USB drive

I managed to UDF format my USB drive following the instructions in Using UDF on a USB flash drive. Later, I came by this post and I began to doubt... Could anyone explain which would be the "best" ...
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487 views

Is UDF an ok substitute for ext3?

I'm thinking of doing the UDF thing to share files between windows and linux. Is UDF a viable option for /home Is UDF a viable option for / Can windows XP correctly read sparse files I created in ...
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Vista: Making Mastered the default burning setting

I'm currently backing off a ton of data onto DVDs, but I've already lost one DVD because I forgot to select the hidden option of "Mastered" before I pressed "next". Is there a way to make this the ...
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837 views

Software to view metadata of an ISO file?

I have been searching for the list of metadata field of an ISO file on Google but couldn't find anything. That made me think that there isn't any metadata in an ISO file, just the files content and ...
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1answer
937 views

How to format DVD-RAM?

I have few DVD-RAM disks and when using udftools, specifically sudo mkudffs --media-type=dvdram /dev/sr0 where /dev/sr0 is my DVD-RAM drive, I get trying to change type of multiple extents and ...
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3answers
3k views

Driver for writing to UDF partitions from Windows XP?

I'm considering using an UDF partition to share data between Windows XP, 7, and Linux. It's more efficient than FAT32, and avoids the 4GB max file size limit. I've found it will also work with Mac OS ...
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Format UDF hard drive as NTFS in Windows 7

I have a MyBook hard drive that someone gave to me to format to NTFS. Right now it's UDF and windows treats it like a CD-ROM. I can't seem to figure out how to format it to be NTFS.
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UDF Reader for CDs on Vista 32

I'm looking for some software to read some old(> 5 years) CD-RWs I wrote. Unfortunately, they were written in UDF format, and my Windows Vista machine does not accept the UDF reader software written ...
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Change UDF volume label

After creating a UDF volume on my 1TB external hard disk. I noticed I hadn't set the volume label. How can I change this? I currently have udftools in Ubuntu but can't determine the correct command ...
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Problems With Mounting UDF DVDs In Ubuntu

When I'm trying to read DVDs (burned in Vista) in my Ubuntu Jaunty, it throws an alert Invalid mount option when attempting to mount the volume 'UDF Volume'. I've installed packages libudf0 and ...
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how to read/recover a udf partition

I need to recover the files inside a UDF partition on my vcr external disk. Which program can I use in (preferably) Windows or Linux os?
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Using UDF on a USB flash drive

After failing to copy a file bigger than 4G to my 8G USB flash drive, I formatted it as ext3. While this is working fine for me so far, it will cause problems if I want to use it to copy files to ...