LTH type BD-R

DiDequ wrote on 1/13/2014, 4:01 AM
I bought last week a 10 box BD-R bluerays. Verbatim (25GB) without noticing 3 letters "LTH"
These discs have a golden color.
Burning one disc failed ... burned an old Verbatim disc - it succeedeed.
Found the LTH difference on the boxes.

Searching the web explained me these new discs can only be recorded and played on LTH certified burners.
If you are lucky, you can probably upgrade the firmware of your "old" BD burner device !

I am not lucky, no firmware for me. I shall use these discs in a couple of years - or give them to friends !
My BD-R burner is too old ! (sic) 2009 - 2010 ...2014 almost 6 years already.

Hope this message will help someone, saving time and some money.



Dexcon wrote on 1/13/2014, 4:32 AM
Thanks for the heads up, Didier. That's very good to know. I'd never have known otherwise.

I checked a BD-R entry on Wikipedia which refers to research by France's Ministry of Culture and Communication in 2011, which concluded that LTH (low to high) BD-Rs are inferior to HTL (high to low) BD-Rs in regards to usefulness for archival storage. But apparently LTHs are cheaper to manufacture than HTLs. Who'd have ever thought that any company would ever sacrifice quality in the name of cost. What's the world coming to?



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vkmast wrote on 1/13/2014, 4:36 AM
thanks for reminding. This issue just came up (once again) in a DVDA Forum thread. Verbatim's own site warns of these issues as well.
"Some older drives may encounter issues when reading or writing to LTH Type discs."
See the Verbatim site for an (oldish) BD write compatibility table.
If one's burning DVDs/BDs, doing some homework on the discs will pay off.
Arthur.S wrote on 1/13/2014, 1:32 PM
I found out the hard way too last year. :-( I've bought a new player that burns them now. It's getting increasingly harder to find 'normal' BDs. Sometimes the ads don't state LTH when they are.