Have you ever seen this weirdness on a Blu-ray disc? - Blu-ray Forum

Leeon0 · 07-21-2016, 12:16 AM

[Show spoiler]

These little puncture marks, located on the underside of the disc:

1. What are they?
2. What causes them?
3. Is the data located in the section of the disc where they appear (close to the spindle hole)?
4. Will they lead to playback issues (so far no)? What about those air bubbles in the plastic layer?

Sorry about all the questions, but I was looking through a thread here about disc rot, and it got me thinking.

BerryTheMusicMan · 07-21-2016, 12:24 AM

Never seen that before !

Optimus-Prime-Rox · 07-21-2016, 12:28 AM

Is it an import disc? Maybe it was cheaply manufactured and those are air bubbles.

Leeon0 · 07-21-2016, 12:33 AM

Not an import disc.

Starman22 · 07-21-2016, 12:34 AM

Quote:

Originally Posted by Leeon0

[Show spoiler]

These little puncture marks, located on the underside of the disc:

1. What are they?
2. What causes them?
3. Is the data located in the section of the disc where they appear (close to the spindle hole)?
4. Will they lead to playback issues (so far no)? What about those air bubbles in the plastic layer?

Sorry about all the questions, but I was looking through a thread here about disc rot, and it got me thinking.

There no problem in my Blu-ray collection disc before.

Quote:

Originally Posted by BerryTheMusicMan

Never seen that before !

Same here.

crazyBLUE · 07-21-2016, 12:40 AM

If the disc plays fine I would not worry about it

Is that the only disc you have like that?

If so then it was probably a one time thing I think ~ The one & only

Now you will have everyone on earth checking their discs

MifuneFan · 07-21-2016, 12:41 AM

BD Vampire strikes again

Leeon0 · 07-21-2016, 12:50 AM

Quote:

Originally Posted by crazyBLUE

If the disc plays fine I would not worry about it

Is that the only disc you have like that?

If so then it was probably a one time thing I think ~ The one & only

Now you will have everyone on earth checking their discs

The only such disc in my collection...Reading about disc rot can make one kind of edgy.

crazyBLUE · 07-21-2016, 12:54 AM

Quote:

Originally Posted by Leeon0

The only such disc in my collection...Reading about disc rot can make one kind of edgy.

The problem with the disc rot has been cured I am sure. From the pics I saw you post look like tiny indents or tiny bubbles & if the disc plays fine then I myself would not worry about it

Kristian Idol · 07-21-2016, 01:13 AM

Yeah, it just looks like some manufacturing byproduct, like the coating cooled too fast or something happened right at the end of manufacture (debris?). Like when you get waves in the clear plastic of the case.

It won't affect play because content doesn't start until further out on the disc. While program does start inside near the ring and moves out (opposite from a vinyl LP) there's nothing at the shiny, reflective area around the hole. It's one big spiral of information that starts where it looks a little gray.

gigan72 · 07-21-2016, 01:16 AM

I actually have that on my copy of Aliens from the anthology set. Plays fine so I never thought of it again until now.

Leeon0 · 07-21-2016, 01:40 AM

Quote:

Originally Posted by Kristian Idol

Yeah, it just looks like some manufacturing byproduct, like the coating cooled too fast or something happened right at the end of manufacture (debris?). Like when you get waves in the clear plastic of the case.

It won't affect play because content doesn't start until further out on the disc. While program does start inside near the ring and moves out (opposite from a vinyl LP) there's nothing at the shiny, reflective area around the hole. It's one big spiral of information that starts where it looks a little gray.

Ah, so that's where it starts...good to know. And it does make sense that something might've happened during the cooling process.

Quote:

Originally Posted by gigan72

I actually have that on my copy of Aliens from the anthology set. Plays fine so I never thought of it again until now.

Comforting I'm not alone here...though I hope you won't think about it again after today.

ScarredLungs · 07-21-2016, 02:16 AM

Never seen that before. My alien anthology disc's do not have that.

bigdaddyhorse · 07-21-2016, 01:44 PM

Seen it before, but can't recall on what. I'm not goin through my hundreds of discs looking, esp. since it could've been on a library or rental disc I'll never find anyway. Whatever disc had it played fine.

thecalm_7 · 07-21-2016, 01:56 PM

I've had numerous like that. Also on the outer edge. It's nerve racking. My latest was Tennebre. It has dimples and raised spots. It went ignored in the Tennebre thread. Movie plays fine, I wonder the long term playability though.

HD Goofnut · 07-21-2016, 01:56 PM

As said above, if it plays fine I wouldn't give it a second thought.

Giallogist · 07-21-2016, 01:57 PM

I thought they fired this guy at the packaging plant?

Musicguy · 07-21-2016, 05:37 PM

Disc warts!

Thomas Irwin · 07-21-2016, 07:13 PM

I KEEL YOU · 07-21-2016, 07:18 PM

Those are speed holes. They make the blu ray spin faster.

07-21-2016, 12:16 AM	#1
Leeon0 Banned Member since:Jan 2012	Have you ever seen this weirdness on a Blu-ray disc? [Show spoiler] [Show spoiler] [Show spoiler] These little puncture marks, located on the underside of the disc: 1. What are they? 2. What causes them? 3. Is the data located in the section of the disc where they appear (close to the spindle hole)? 4. Will they lead to playback issues (so far no)? What about those air bubbles in the plastic layer? Sorry about all the questions, but I was looking through a thread here about disc rot, and it got me thinking.

07-21-2016, 01:13 AM	#10
Kristian Idol Special Member Top contributor Member since:Sep 2009 Location:Richmond, London 4K collection:140 Blu-ray collection:854 DVD collection:249 MA collection:11 Digital collection:110 iTunes collection:100 Prime collection:2 Trading Score:5	Don't think it's a problem. Yeah, it just looks like some manufacturing byproduct, like the coating cooled too fast or something happened right at the end of manufacture (debris?). Like when you get waves in the clear plastic of the case. It won't affect play because content doesn't start until further out on the disc. While program does start inside near the ring and moves out (opposite from a vinyl LP) there's nothing at the shiny, reflective area around the hole. It's one big spiral of information that starts where it looks a little gray.

07-21-2016, 12:24 AM	#2
BerryTheMusicMan Blu-ray Samurai Top contributor Member since:Jan 2016 4K collection:1371 Blu-ray collection:6266 DVD collection:509 Digital collection:1530 iTunes collection:3 Blu-ray reviews: 19 Trading Score:7	Never seen that before !

07-21-2016, 12:28 AM	#3
Optimus-Prime-Rox Blu-ray Knight Member since:May 2011 Location:Crossville, TN Trading Score:270	Is it an import disc? Maybe it was cheaply manufactured and those are air bubbles.

07-21-2016, 12:33 AM	#4
Leeon0 Banned Member since:Jan 2012	Not an import disc.

07-21-2016, 12:40 AM	#6
crazyBLUE Moderator Top ranked HT gallery Top contributor Member since:Aug 2008 Location:Pacific Northwest Home Theater Gallery:89 Blu-ray collection:479 DVD collection:1 Blu-ray reviews: 38 Trading Score:30	If the disc plays fine I would not worry about it Is that the only disc you have like that? If so then it was probably a one time thing I think ~ The one & only Now you will have everyone on earth checking their discs

07-21-2016, 12:41 AM	#7
MifuneFan Blu-ray Emperor Top contributor Member since:Mar 2012 Location:New York City 4K collection:27 Blu-ray collection:1143 Trading Score:69	BD Vampire strikes again

07-21-2016, 01:16 AM	#11
gigan72 Power Member Top contributor Member since:Jun 2015 4K collection:602 Blu-ray collection:1053 DVD collection:75 Trading Score:4	I actually have that on my copy of Aliens from the anthology set. Plays fine so I never thought of it again until now.

07-21-2016, 02:16 AM	#13
ScarredLungs Blu-ray Champion Top contributor Member since:Dec 2007 Location:Utah 4K collection:65 Blu-ray collection:1433 Prime collection:1 Blu-ray reviews:8 Trading Score:4	Never seen that before. My alien anthology disc's do not have that.

07-21-2016, 01:44 PM	#14
bigdaddyhorse Blu-ray Knight Top contributor Member since:Oct 2012 Location:SE MI. 4K collection:152 Blu-ray collection:1243 DVD collection:1148 Blu-ray reviews:5 Trading Score:103	Seen it before, but can't recall on what. I'm not goin through my hundreds of discs looking, esp. since it could've been on a library or rental disc I'll never find anyway. Whatever disc had it played fine.

07-21-2016, 01:56 PM	#15
thecalm_7 Power Member Top contributor Member since:Apr 2011 Location:The Gulf 4K collection:946 Blu-ray collection:6017 DVD collection:859 iTunes collection:2 Trading Score:126	I've had numerous like that. Also on the outer edge. It's nerve racking. My latest was Tennebre. It has dimples and raised spots. It went ignored in the Tennebre thread. Movie plays fine, I wonder the long term playability though.

07-21-2016, 01:56 PM	#16
HD Goofnut Blu-ray King Top contributor Member since:May 2010 Location:Far, Far Away Home Theater Gallery:114 4K collection:743 Blu-ray collection:2372 DVD collection:128 MA collection:751 Digital collection:1093 Prime collection:598 Blu-ray reviews:133 Trading Score:39	As said above, if it plays fine I wouldn't give it a second thought.

07-21-2016, 01:57 PM	#17
Giallogist Member Member since:Mar 2011 Trading Score:1	I thought they fired this guy at the packaging plant?

07-21-2016, 05:37 PM	#18
Musicguy Special Member Top contributor Member since:Mar 2010 Blu-ray collection:640 DVD collection:148	Disc warts!

07-21-2016, 07:18 PM	#20
I KEEL YOU Blu-ray Samurai Top contributor Member since:May 2011 4K collection:67 Blu-ray collection:458 DVD collection:42	Those are speed holes. They make the blu ray spin faster.

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