Maximum DVD-ROM file size

Hi all,

I’m in a desperate search for info here…does anyone know if there is a 1 GB file size limit on DVD-ROM (data) files ? It appears from OSTA’s UDFS spec that a 1 GB limit is imposed on DVD-Video files but it’s not clear as to whether or not that applies to DVD-ROM data as well. Any help would be appreciated.


John Goluch
Software Engineer
Navigation Technologies

Hope this helps


A new type of read-only compact disc that can hold a minimum of 4.7GB (gigabytes), enough for a full-length movie.

The DVD-ROM specification supports disks with capacities of from 4.7GB to 17GB and access rates of 600 KBps to 1.3 MBps.

One of the best features of DVD-ROM drives is that they are backward-compatible with CD-ROMs. This means that DVD-ROM players can play old CD-ROMs, CD-I disks, and video CDs, as well as new DVD-ROMs. Newer DVD players can also read CD-R disks.

DVD-ROMs use MPEG-2 to compress video data

Thanks for the reply. I should have been more specific in my original post. My problem is specifically under the WinCE .NET operating system. I’ve subsequently found out that there IS a bug in the Microsoft UDFS file system driver that limits file sizes to 1 GB (i.e. 2^30 - 1 bytes). This may get fixed sometime in 2004 per MS. Pass it on as this seems to be a very well hidden and/or little known fact.