Is the physical BD diff. from a DVD disc ? - Blu-ray Forum

The Big Blue · 02-21-2007, 06:03 PM

BDs feel a little different to me. Thicker maybe? The edges are sort of rounded? Or am I imagining things?

thunderhawk · 02-21-2007, 06:18 PM

Not sure if it's more rounded, could be.

Because of the dye, it could be possible that it feels thicker... But actually it isn't.

From the Blu-ray.com FAQ:

Quote:

Disc diameter: 120 mm (BD) vs 120 mm (DVD)
Disc thickness: 1.2 mm (BD) vs 1.2 mm (DVD)

The Big Blue · 02-21-2007, 06:38 PM

Ah, thanks. I went and looked at that. I know you would have caught this if it were there (and I didn't mention this in the first post) but it didn't list weight. Maybe the hardcoat makes it heavier than a DVD. If I'm crazy so be it but I'm trying to aviod coming to that conclusion.

WriteSimply · 02-21-2007, 06:53 PM

To me BD feels lighter than DVD.

fuad

The Big Blue · 02-21-2007, 07:06 PM

Did you just call me crazy?

McBain · 02-21-2007, 07:44 PM

Quote:

Originally Posted by WriteSimply

To me BD feels lighter than DVD.

Funny enough, the allowable range for a Blu-ray disc is a few grams less than that for a DVD.

Heresy · 02-21-2007, 07:47 PM

Maybe it's a bit lighter because it has to spin faster?

thunderhawk · 02-21-2007, 07:57 PM

Not sure 'bout that. If you're refering to the higher bitrates, it's mainly because of the smaller wavelength of the laser.

MFS3Kiryu · 02-23-2007, 02:21 AM

Quote:

Originally Posted by thunderhawk

Not sure if it's more rounded, could be.

Because of the dye, it could be possible that it feels thicker... But actually it isn't.

From the Blu-ray.com FAQ:

Sorry, off topic, but in your sig it marks Weinstiens as neutral, is that true?!

Heresy · 02-23-2007, 02:37 AM

Quote:

Originally Posted by thunderhawk

Not sure 'bout that. If you're refering to the higher bitrates, it's mainly because of the smaller wavelength of the laser.

The Blu-ray laser can read data at higher RPM and this accounts for the higher bitrate; they spin over twice as fast as DVDs and 1.5 times that of HD-DVD. At least that my understanding from everything I've read.

Iceman_II · 02-23-2007, 03:39 AM

Of course BD is heavier, the data is packed more densely!

Disclaimer:
For those who are humor impared out there, its a freakin' JOKE!

madlost1 · 08-31-2013, 07:43 PM

Some how this posted in the wrong thread. Disregard.

Penton-Man · 08-31-2013, 11:39 PM

Quote:

Originally Posted by madlost1

Some how this posted in the wrong thread. Disregard.

Not to worry, your relative location brought back good memories

, i.e. as a little kid I remember my parents taking me to Sans Souci Amusement Park in Wilkes Barre.

crazyBLUE · 09-01-2013, 12:30 AM

Quote:

Originally Posted by madlost1

Some how this posted in the wrong thread. Disregard.

Wow ~ Bumped a thread from over 6 years ago ~

02-21-2007, 06:03 PM	#1
The Big Blue Blu-ray Guru Member since:Feb 2007 Blu-ray collection:98 Blu-ray reviews:1	Is the physical BD diff. from a DVD disc ? BDs feel a little different to me. Thicker maybe? The edges are sort of rounded? Or am I imagining things?

02-23-2007, 03:39 AM	#11
Iceman_II Expert Member Member since:Jan 2007 Location:Ft. Worth Home Theater Gallery:2 Blu-ray collection:308 Blu-ray reviews: 4	Of course BD is heavier, the data is packed more densely! Disclaimer: For those who are humor impared out there, its a freakin' JOKE! Last edited by Iceman_II; 02-23-2007 at 03:44 AM.

08-31-2013, 07:43 PM	#12
madlost1 Blu-ray Knight Top contributor Member since:Oct 2009 Location:Hazle Township, PA Home Theater Gallery:9 Blu-ray collection:1258 DVD collection:341 Trading Score:42	Some how this posted in the wrong thread. Disregard. Last edited by madlost1; 08-31-2013 at 09:29 PM.

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02-21-2007, 06:38 PM	#3
The Big Blue Blu-ray Guru Member since:Feb 2007 Blu-ray collection:98 Blu-ray reviews:1	Ah, thanks. I went and looked at that. I know you would have caught this if it were there (and I didn't mention this in the first post) but it didn't list weight. Maybe the hardcoat makes it heavier than a DVD. If I'm crazy so be it but I'm trying to aviod coming to that conclusion.

02-21-2007, 06:53 PM	#4
WriteSimply Blu-ray Ninja Member since:Sep 2006 Location:Kuala Lumpur, Malaysia	To me BD feels lighter than DVD. fuad

02-21-2007, 07:06 PM	#5
The Big Blue Blu-ray Guru Member since:Feb 2007 Blu-ray collection:98 Blu-ray reviews:1	Did you just call me crazy?

02-21-2007, 07:47 PM	#7
Heresy Active Member Member since:Dec 2006 Location:Frisco, TX	Maybe it's a bit lighter because it has to spin faster?

02-21-2007, 07:57 PM	#8
thunderhawk Moderator Member since:Jul 2004 Location:Belgium	Not sure 'bout that. If you're refering to the higher bitrates, it's mainly because of the smaller wavelength of the laser.

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