BD-R filesize limit?

Laurence wrote on 5/31/2008, 10:54 PM

Do Blu-ray burners have a smaller file size limit like DVD+-Rs? If I buy a BD burner will I be able to use it to back up five and six GB files or will I have to split them up into smaller chunks?

Comments

John_Cline wrote on 5/31/2008, 11:46 PM

If you select the UDF file system when you burn the disc, you can burn single files up to the limit of the disc capacity. This is also true of DVD+/-R media.

john-beale wrote on 6/1/2008, 9:33 AM

DVD-Video media use UDF version 1.02. These discs contain a so-called UDF Bridge format, whereby both an ISO 9660 (Level 1) and a UDF 1.02 filesystem are present on the same disc, describing the same filesystem.
http://en.wikipedia.org/wiki/Universal_Disk_Format

On a DVD-Video disc, the file size restriction is from the ISO 9660 part of the "Bridge" format. DVD video files are generally less than 2^30 = 1,073,741,824 bytes in size, although the format size limit is actually 2^32 - 1 bytes.

If you go pure UDF, it's just the media size. (Technically, it is limited to 2^60 = 1,152,921,504,606,846,976 bytes but there's no media that big yet!)