Re: [Dvdrtools-users] dvdrecord copying a tar/bz2 file

[Bryan J. Smith <address@hidden>]

From: Vijay Kumar <address@hidden>
> I am trying to copy a .tar and .bz2 file on the Sony DVD writer 
> Please can anyone tell me the command to write a .tar/bz2 file on the DVD ? 
> Here is whatI have tried : 
> dvdrecord -v -data -dao -multi dev=0,0,0 /home/use1/test.tar 

That won't work because the CDRecord family (including DVDRecord) only
understand certain ISO9660 track formats -- Red Book (audio), Yellow Book
(data, aka "ISO [data] file"), etc...  Some versions support UDF filesystems,
among others.

Now there _are_ some ways to write "raw" bits to CD/DVD devices.
But it's not recommend you do this because you can run into all sorts
of issues (e.g., endian/byte order differences between systems, etc...).
ISO9660 is a standard that nearly all systems adhere too. 

> Do I need to create a .iso file so that the same can be used as an input
> for the dvdrecord command ? 

Yes, you need to pre-master a file that the CDRecord family can understand
and record.

> I have searched through google and everywhere I have found all example
> with the mkiofs command to create a .iso file.  

Mkisofs is the most common program for pre-mastering a file.

The mkisofs+cdrecord family of tools are assuming you want to pre-master
a file, and linearly record that file to a CD/DVD.  If you have a re-writable
media -- e.g., CD-RW, DVD-RAM, DVD-RW, DVD+RW, you typically don't
want (let alone don't need) to use this approach.

You should be able to rewrite the file directly to a pre-formatted, rewritable
optical media using the direct device under Linux just like it was a ROM,
only writable as well.  The way you do this varies based on program/access.

Growisofs is popular if you want to make an ISO9660 Yellow Book track
CD/DVD, which is the most compatible filesystem for CD/DVD.  UDF is
another, popular format that is a superset of ISO9660, and comes as
the standard format for DVD-RAM discs, but is not as proliferated as
ISO9660 (i.e., many older Windows versions do not even include read-only
drivers, and most require 3rd party software to re-write UDF).



--
Bryan J. Smith   mailto:address@hidden