Welcome to the Invelos forums. Please read the forum rules before posting.

Read access to our public forums is open to everyone. To post messages, a free registration is required.

If you have an Invelos account, sign in to post.

    Invelos Forums->General: General Discussion Page: 1  Previous   Next
Is 4K and BD-XL the same?
Author Message
DVD Profiler Desktop and Mobile RegistrantStar ContributorRander
I hate mondays...
Registered: March 13, 2007
Denmark Posts: 601
Posted:
PM this userEmail this userVisit this user's homepageView this user's DVD collectionDirect link to this postReply with quote
I've been wondering about this for a few days, and I can't seem to find a simple answer:

Can a BD-XL drive read (and potentially show) 4K? I'm thinking that they're both "simply" high-capacity BluRays, but are they the same format?

It seems that all drives I can find that boasts UHD-playback also supports BD-XL without exception - the opposite isn't always the case, but is that because it is implied, or is there a subtle difference? I mean, it's not like any electronics company to miss out on a single superlative they can slap on the box...

(I don't own any 4K discs, so I can't test it myself)
The future is here. It's just not widely distributed yet. (William Gibson)
DVD Profiler Unlimited RegistrantStar Contributorrdodolak
Registered: March 18, 2007
Reputation: Great Rating
United States Posts: 1,373
Posted:
PM this userView this user's DVD collectionDirect link to this postReply with quote
There is no reason why BD-XL drives can't read them, but some manufacturers restrict it via firmware.  Plus you can't play them by default due to the encryption requirements levied by the BDA.

I have some UHD Friendly (BD-XL) drives that do read the discs.
DVD Profiler Desktop and Mobile RegistrantStar ContributorAiAustria
Profiling since 2004
Registered: May 19, 2007
Reputation: Highest Rating
Austria Posts: 5,061
Posted:
PM this userDirect link to this postReply with quote
As far as I know, they read the discs but they do not necessarily fullfil the encryption chain from the disc to the monitor, which is needed to play the discs and get a picture.
Complete list of Common Names  •  A good point for starting with Headshots
DVD Profiler Unlimited RegistrantStar Contributorrdodolak
Registered: March 18, 2007
Reputation: Great Rating
United States Posts: 1,373
Posted:
PM this userView this user's DVD collectionDirect link to this postReply with quote
Quoting AiAustria:
Quote:
As far as I know, they read the discs but they do not necessarily fullfil the encryption chain from the disc to the monitor, which is needed to play the discs and get a picture.


LG, for example, released updated firmwares which made reading UHDs disc not possible from Blu-ray BD-XL (UHD friendly) capable drives.  Newer drives came with the updated firmware.  One of my drives had the older firmware and one had the newer firmware (since downgraded).
DVD Profiler Desktop and Mobile RegistrantDr. Killpatient
Here's my card
Registered: May 19, 2007
Reputation: Highest Rating
United States Posts: 5,866
Posted:
PM this userView this user's DVD collectionDirect link to this postReply with quote
This drive will read the 4K UHD discs. I own one.

https://www.newegg.com/p/1FV-000B-00043?Item=9SIAG1H8DD8302
    Invelos Forums->General: General Discussion Page: 1  Previous   Next