Can't read backup dvd's under edgy

[Nigel Ridley]

Branko Vukelic wrote:
> On Sunday 22 October 2006. 22:03, Nigel Ridley wrote:
>> Just did a clean install of edgy on my Toshiba laptop; updated, dist
>> upgraded, installed all the nice codec stuff etc. but can't read my
>> backup dvd's that I can on my dapper [main] box (the laptop used to be
>> able to under dapper).
>> The laptop can play dvd movies - just can't read my backup dvd's :-( my
>> backup cd's it can read fine - just not the dvd's.
> 
> First of all, I did a google search on on of the error msgs that you 
> originally posted:
> 
>>> [520938.360344] isofs_fill_super: bread failed, dev=hda, iso_blknum=16, 
>>> block=16
> 
> Don't know how and how much this is related to your prob, but here goes:
> 
> http://www.ubuntuforums.org/showthread.php?t=2264
> http://www.linuxforums.org/forum/debian-linux-help/38242-mount-cd-dvd-rom-problems.html
> 
> 
>> Any ideas someone?
> 
> Now, I don't know if you are aware of this, but when burning DVDs that are to 
> be used on another system (box), you need to keep two things in mind (at 
> least):
> 
> 1. Do not burn at high speeds. Use at most half the maximum speed supported by 
> your media.
> 
> 2. Do not burn multi-session discs: close the first session when burning.
> 
> You may try this: copy your backup DVD onto another disc using single session 
> and burning at reduced speed (for example, if your disc is declared as a 4x 
> disc, burn at 2x or 1x). 
> 
> Also, try different type of DVD: if you used +, then try -, and vice versa. 
> This is especially important if your other drive (laptop one) is older.
> 
> There are other factors, like some manufacturers emulating (badly) brand name 
> disc characteristics. This causes the software to burn assuming specs that 
> don't really fit the medium. Some drives will do a fine job, but some may 
> burn discs that can only be read on the same make/model drives.
> 
> Hope this helps.
> 
> B
> 

Thanks for the help.
My memory isn't what it used to be - so, since the laptop is about 6 
years old, it probably can't (and never did) read data burned dvd's.

I shall just have to make sure that I burn important stuff for the 
laptop to cd :-)

The problem still exists for the 'coaster' that my main [year old] box 
can't read but Win xp can!??

Blessings,

Nigel

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