> On Mon, Feb 03, 2020 at 11:58:07AM +0100, Joerg Schilling wrote:
>Roger <rogerx....@gmail.com> wrote:
>> Can bluray players view ISO9660 filesystems?
>> If so, is it preferable to still use "growisofs -udf -iso-level 3 ..."?
>growisofs is unmaintained and this no longer preferred.

I noticed, as I spend some time reading his avid note taking, and use 
dvd+rw-tools quite often.

>Use mkisofs. Note that growisofs use mkisofs to create udf filesystems.

The "-UDF"/"-udf" switch, as documented within the mkisofs man file, sectors 
20-256 are supposedly wasted.  I calculated this to be about 236 sectors * 2048 
bytes (as 2048 bytes are contained within one DVD sector), is about 483,328 
bytes, or roughly ~483MB.  However, speculating upon the wording of the man 
page, the usage as you already stated, is likely just minimal.

>A Bluray Players may support ISO-9660, but there is no need, since movies have 
>their own data structures in the *IFO files that are located via a magic 
>and must be in a spoecific block range on the medium.
>The standard requires the UDF that is implemented in mkisofs since 2001.

On that note concerning the "standard", my gut instict is to just use the 
"-UDF"/"-udf" options. The wasted space is likely a moat issue, and only a 
concern when preserving a copy of copywrited DVD/BD material.  My DVD/BD 
recorded media should be viewable  via a very basic file system viewer/menu on 
TV standalone bluray players, manually selected and viewed/played, as long as 
the standalong player has the decoders.

I'll do my research based on what you stated here, as I've been using CLI 

I also *just* noticed the ability of using cp/rm (POSIX) tools with 
DVD+RW/BD-RE not requiring the Linux kernel pktcdvd driver (supposedly marked 
deprecated as of 2016), although I have yet to test writing with larger files, 
likely expect more noise or random writing at 2kb writes instead of 32kb 

Remember, the intent of this thread is TV standalong bluray players, not 
related to PC equipment.  I just desire to make non-copyrighted files such as 
photos and recorded video only viewed/playable without nice looking menus, 
other eye-candy, or automatic playback, etc.

I might have to buy a cheap standalone player to ensure the player is acting as 
it should with the chosen recording process, rather than just assuming.  
Surprising I cannot find more information on the Internet concerning a 
simplified process, and guessing most just run-off and use the graphical tools. 
Or, people have been using mkisofs (or growisofs with) 
-dvd-audio/-dvd-hybrid/-dvd-video all along.


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