I just watched Pearl Harbor BD. The PQ is stunning except for film grain at random scenes. The uncompressed PCM track is unbelievable. The max bit rate my PS3 displayed was 39.6 Mbps. Though this movie is MPEG-2 encoded this is almost twice the bit rate of broadcast HD. Does the PS3 bit rate display correct value ? I will post my views on Face-off BD (J version) once I get the chance to watch it.

The PS3 gets noisy starting from 30 minutes and I hope that it's a common phenomenon in all the PS3s. Also the system generates enough heat that makes my TV stand pretty warm. Looks like PS3 can be a perfect winter equipment coz it can provide the room with sufficient warmth.

I just watched Pearl Harbor BD. The PQ is stunning except for film grain at random scenes. The uncompressed PCM track is unbelievable. The max bit rate my PS3 displayed was 39.6 Mbps. Though this movie is MPEG-2 encoded this is almost twice the bit rate of broadcast HD. Does the PS3 bit rate display correct value ? I will post my views on Face-off BD (J version) once I get the chance to watch it.

The PS3 gets noisy starting from 30 minutes and I hope that it's a common phenomenon in all the PS3s. Also the system generates enough heat that makes my TV stand pretty warm. Looks like PS3 can be a perfect winter equipment coz it can provide the room with sufficient warmth.

Not having a PS3, I'm getting that 39.6 bit rate you're seeing includes the audio portion of the disc playing. I don't know if it's 20 bit or 16 bit PCM but that would put the video side of the disc in the 33-35 Mbps range. :-)

I just watched Pearl Harbor BD. The PQ is stunning except for film grain at random scenes. The uncompressed PCM track is unbelievable. The max bit rate my PS3 displayed was 39.6 Mbps. Though this movie is MPEG-2 encoded this is almost twice the bit rate of broadcast HD. Does the PS3 bit rate display correct value ? I will post my views on Face-off BD (J version) once I get the chance to watch it.

The PS3 gets noisy starting from 30 minutes and I hope that it's a common phenomenon in all the PS3s. Also the system generates enough heat that makes my TV stand pretty warm. Looks like PS3 can be a perfect winter equipment coz it can provide the room with sufficient warmth.

Try standing your PS3 vertically. That helped me. Mine got fairly loud after a while of use buy with vertical positioning, it has yet to get to that noise level.
The ps3's bitrate meter is pretty accurate to me. Pirates of the Caribbean goes up to the high 40's with mpeg-4 :eek:

Does bitrate really matter? What does it do/mean? I've watch movies that dip down to 5.0, and they've looked better then some of the ones I've seen at 29.0

Does bitrate really matter? What does it do/mean? I've watch movies that dip down to 5.0, and they've looked better then some of the ones I've seen at 29.0

depends on the scene. if it's a scene of one solid color with no action ie the fade ins and fade outs or then you dont need much bitrate. for scenes with lots of action if bitrate isnt high enough to process all the info u'd see some distortions in the form of microblocks like you sometimes would watching hdtv broadcasts during fast busy scenes.

depends on the scene. if it's a scene of one solid color with no action ie the fade ins and fade outs or then you dont need much bitrate. for scenes with lots of action if bitrate isnt high enough to process all the info u'd see some distortions in the form of microblocks like you sometimes would watching hdtv broadcasts during fast busy scenes.

That is right. On scenes with alot of motion, i.e. water, fire explosions, etc..
A high bitrate reduces artifacts that may appear as a result of compression. I always believe that less compression is the way to go as far as video is concerned.

Try standing your PS3 vertically. That helped me. Mine got fairly loud after a while of use buy with vertical positioning, it has yet to get to that noise level.
The ps3's bitrate meter is pretty accurate to me. Pirates of the Caribbean goes up to the high 40's with mpeg-4 :eek:

Blu-Ray's max video bit rate allowed by the format is 40. Again, I think some of this is going to the audio...

one of the worst movies ever IMO

one of the worst movies ever IMO
I liked it. But it's no Transformers.:) IMO, the only true **** Michael Bay has directed (unless I'm forgetting some) are the Bad Boys films. Totally unredeeming flicks.

one of the worst movies ever IMO
No one asked. :rolleyes:

I thought the bitrate meter on the PS3 was just for video but if that peak is true then it can't be the case. If anything, it is nice to know that they are using every last bit they can pump out, even if it is inefficient mpeg2.

Add me as someone who is now keeping the PS3 vertical and never having a heat or noise issue.

Blu-Ray's max video bit rate allowed by the format is 40. Again, I think some of this is going to the audio...

PS3 reports the audio and video bit-rates separately.

Blu-Ray's max video bit rate allowed by the format is 40. Again, I think some of this is going to the audio...

That is true, but it is capable of momentary spikes above that. PS3 reports video and audio bitrates separately. The BD-ROM is actually capable of 53 mbps raw data transfer.

That is true, but it is capable of momentary spikes above that. PS3 reports video and audio bitrates separately. The BD-ROM is actually capable of 53 mbps raw data transfer.

Really? Learn something new everyday, thanks!

Here's a question for the techies then... if there's an allowable spike for higher rates for brief periods, how does a disc producer know what the ceiling is? (I.E., what's the fine line that might make a player choke on it's playback of a disc...)

Really? Learn something new everyday, thanks!

Here's a question for the techies then... if there's an allowable spike for higher rates for brief periods, how does a disc producer know what the ceiling is? (I.E., what's the fine line that might make a player choke on it's playback of a disc...)

I've never looked at the Blu-ray specification personally, and this is just speculation / educated guess - but I've heard such spikes are made possible by memory prefetch buffers. The overall throughput is limited to 40Mb/s off disc, but for very short periods, data can be streamed out of volatile memory directly, temporarily providing higher bandwith.

If this is true, I would image the BD authoring & encoding tools would be written to account for this - the maximum limited by buffer size and the data rate required for scences the immediatley follow (to allow the buffer to re fill).

Try standing your PS3 vertically. That helped me. Mine got fairly loud after a while of use buy with vertical positioning, it has yet to get to that noise level.
The ps3's bitrate meter is pretty accurate to me. Pirates of the Caribbean goes up to the high 40's with mpeg-4 :eek:
When I saw POTC2 on Blu-Ray via PS3 there was a scene which hit 50 mbps :eek: I took a snap shot because it was pretty impressive. It was when the giant davy jones squid thing was just about to smash a ship

http://img238.imageshack.us/img238/2114/dsc01056oq7.jpg

^
I can't recall if it is the first or second time the davy jones squid thing attacks a ship, but it is when the tentacles are climbing up the side of it right before it goes on the smashing rampage

Try standing your PS3 vertically. That helped me. Mine got fairly loud after a while of use buy with vertical positioning, it has yet to get to that noise level.
The ps3's bitrate meter is pretty accurate to me. Pirates of the Caribbean goes up to the high 40's with mpeg-4 :eek:

yea, vertical is better as there is more surface area exposed to the air...way more.

I liked it. But it's no Transformers.:) IMO, the only true **** Michael Bay has directed (unless I'm forgetting some) are the Bad Boys films. Totally unredeeming flicks.

Well its all in YOUR opinion. I actually enjoyed both the Bad Boys film. To be quite honest its great to see two black guys in a lead role that had Box Office success.

But it was also a great series.

I've never looked at the Blu-ray specification personally, and this is just speculation / educated guess - but I've heard such spikes are made possible by memory prefetch buffers. The overall throughput is limited to 40Mb/s off disc, but for very short periods, data can be streamed out of volatile memory directly, temporarily providing higher bandwith.

If this is true, I would image the BD authoring & encoding tools would be written to account for this - the maximum limited by buffer size and the data rate required for scences the immediatley follow (to allow the buffer to re fill).

As far as educated guesses go, I'll buy that. :-)