I was testing the interoperability of burning a DVD-R on my mac desktop with reading it on FreeBSD 5.2.1. When I mount the DVD in FreeBSD, it gives me the following error listing the files: [root@crash]# mount -t cd9660 /dev/acd0 /mnt [root@crash]# ls -l /mnt ls: mm.21-May-2004.dump: Value too large to be stored in data type total 116002 -r-xr-xr-x 1 root wheel 440 May 25 09:54 README.mm-dump.txt* -r-xr-xr-x 1 root wheel 118786146 May 21 03:03 rt2.21-May-2004.dump* [root@crash]# df /mnt Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/acd0 2374660 2374660 0 100% /mnt [root@crash]# umount /mnt Sticking the disk onto my MacOS 10.3.3 box, it shows up like this: % ls -l /Volumes/dd total 4748296 -rw-r--r-- 1 vivek unknown 440 25 May 09:54 README.mm-dump.txt -rw-r--r-- 1 vivek unknown 2312337081 21 May 03:59 mm.21-May-2004.dump -rw-r--r-- 1 vivek unknown 118786146 21 May 03:03 rt2.21-May-2004.dump The disk format is "HFS+" which is a superset of the Juliet extensions. My guess is that the file size limit is 1Gb, given that when I look at other DVD movie files, they're always broken up at 1Gb file size per segment of the movie. Can anyone confirm this? =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-Vivek Khera, Ph.D. Khera Communications, Inc. Internet: khera@kciLink.com Rockville, MD +1-301-869-4449 x806 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
On Tue, 25 May 2004, Vivek Khera wrote:> The disk format is "HFS+" which is a superset of the Juliet extensions.This is not correct; HFS+ is its own filesystem, where Joilet is an extension of ISO9660. Considering you can mount it under FreeBSD with cd9660fs, its not in HFS+ format. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
On May 25, 2004, at 2:54 PM, Doug White wrote:> On Tue, 25 May 2004, Vivek Khera wrote: > >> The disk format is "HFS+" which is a superset of the Juliet >> extensions. > > This is not correct; HFS+ is its own filesystem, where Joilet is an > extension of ISO9660. Considering you can mount it under FreeBSD with > cd9660fs, its not in HFS+ format.The application, burnz (http://www.thinkertons.com/burnz_features.htm) has a slider that lists the following image formats to burn to: ISO 9660 Level 1 ISO 9660 Level 2 Rock Ridge Extensions Joliet Extensions HFS+ and claims that each higher format incorporates all of the features of the lower ones. By default it choses the "HFS+" format.
On Tuesday 25 May 2004 21:52, Vivek Khera wrote:> ISO 9660 Level 1 > ISO 9660 Level 2 > Rock Ridge Extensions > Joliet Extensions > HFS+ > > and claims that each higher format incorporates all of the features of > the lower ones.I assume "higher format" == "lower in this list". In this case the author of burnz has an interesting perception of the features of a fs with Joliet vs RockRidge extensions. -- ,_, | Michael Nottebrock | lofi@freebsd.org (/^ ^\) | FreeBSD - The Power to Serve | http://www.freebsd.org \u/ | K Desktop Environment on FreeBSD | http://freebsd.kde.org -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 187 bytes Desc: signature Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20040525/8461284e/attachment.bin
On Tue, 25 May 2004, Vivek Khera wrote:> > This is not correct; HFS+ is its own filesystem, where Joilet is an > > extension of ISO9660. Considering you can mount it under FreeBSD with > > cd9660fs, its not in HFS+ format. > > The application, burnz (http://www.thinkertons.com/burnz_features.htm) > has a slider that lists the following image formats to burn to: > > ISO 9660 Level 1 > ISO 9660 Level 2 > Rock Ridge Extensions > Joliet Extensions > HFS+ > > and claims that each higher format incorporates all of the features of > the lower ones. By default it choses the "HFS+" format.Burnz is a cool tool. I use it, and payed for it even. Much, much more efficient for burning disc images than Disk Utility, and I generally burn images. Burnz, in this case, creates a hybrid disc, one with HFS+ and another with ISO9660+RR+Joilet, with the same data on both sessions. This emulates the default MacOS behavior if you burn a folder (as compared to burning a disc image). I can unequivcally say that HFS+ is _NOT_ based on ISO9660. Your MacOS disks are all formatted in HFS+, and ISO9660 is a write-once format. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org