View Full Version : blu ray w/o gigabit streaming
for those of you out there who chose an option other than the gigabit module,
can you tell us what your experience has been streaming BD?
thanks
No luck with wifi. It stutters from the beginning
100mbit over NFS ok, over SMB not always ok. Over USB works fine.
Hi,
i ordered my Dune with the GB module just to be on the safe side, but it turned out that NFS via 100MBit works very well (even high bitrate video with HD sound). As mentioned before, BD via SMB requires the GB option.
playedalive
06-03-09, 14:54
im not sure if this will help but right now i am using the gigabit module on a 100mbit switch via NFS and I do get some disc's become unplayable even though I do archive a read through of 8mb a sec, have ordered a gigabit switch to see what happens
Hi playedalive,
8MB/s sounds rather low to me - i have a similar config than you. My Dune is connected via GB interface to a GB switch, but the PC where the movies are stored is connect only via 100MBit. So actually, i have a 100MBit end-to-end config.
I get 12MB/s with this environment.
playedalive
06-03-09, 15:09
sorry the way i have it is reverse to you:
BD Prime Gbit > 100mbit Switch / router -> Gbit Switch -> Server
I am also suspecting there may be some packet loss with the 100mbit switch / router under a ton of power cables which I cant exactly move right now.
Hi,
sorry the way i have it is reverse to you:
BD Prime Gbit > 100mbit Switch / router -> Gbit Switch -> Server
well, after all itīs just a 100MBit connection - in your config and in mine as well...
I am also suspecting there may be some packet loss with the 100mbit switch / router under a ton of power cables which I cant exactly move right now.
Hm, the data packages actually shouldnīt care too much about that.
Did you try both UDP and TCP for NFS on the Dune?
im not sure if this will help but right now i am using the gigabit module on a 100mbit switch via NFS and I do get some disc's become unplayable even though I do archive a read through of 8mb a sec, have ordered a gigabit switch to see what happens
A constant rate of 8MB/s should be enough for any format including Bluray. Have you tried playing the ones giving problems through an usb drive?
playedalive
07-03-09, 16:54
hmm, ok today i got my gigabit switch so now my bd prime is fully gigabit from server to player. I decided to try and play a BR that before just crashed, this being beowulf and it now works perfectly. This is now with a max read speed of 15mb a sec.
I can confirm that BD Prime with internal 100mbit port and server running NFS/UDP can not stream Transformers.
It can not stream the European 2 disc version of The Dark Knight either.
I can confirm that BD Prime with internal 100mbit port and server running NFS/UDP can not stream Transformers.
It can not stream the European 2 disc version of The Dark Knight either.
please elaborate...
(I have a Gbit option in my player) but because the internal cabling of my house is not up to specs (only 4 wires) I'm using the 100mbit port. I have tested with MPEG/TS files up to 60mbit (NFS/udp from a NAS) and they are all fine. When I do a read test of a big file I get 8.4MByte (67.2 mbit)...
So the scenes from the Transformers must be between >60mbit (minus the overhead for decoding x264)
What's wrong in this thinking...
I wonder how good is the playback via USB-docking station today? I bought BD Prime with Gigabit option, but I am planning to USB only. I wonder if I should instead have gone with the eSata-model. I was just thinking that if the internal-HD with Dune was done via USB, it cannot be all that bad. Has the usability via USB developed since the original results we got from Hi-Jack?
BTW, Are there any eSata to Gigabit adapters available?
... BTW, Are there any eSata to Gigabit adapters available?
according to some posts by dkv you loose warranty if you open the player (to add or remove adapters...) so adapters are not sold separately. but because things change quickly here it can be that that has changed.
I can confirm that BD Prime with internal 100mbit port and server running NFS/UDP can not stream Transformers.
It can not stream the European 2 disc version of The Dark Knight either.
please elaborate...
(I have a Gbit option in my player) but because the internal cabling of my house is not up to specs (only 4 wires) I'm using the 100mbit port. I have tested with MPEG/TS files up to 60mbit (NFS/udp from a NAS) and they are all fine. When I do a read test of a big file I get 8.4MByte (67.2 mbit)...
So the scenes from the Transformers must be between >60mbit (minus the overhead for decoding x264)
What's wrong in this thinking...
If anyone can stream Transformers european version on the internal 100mbit port then I will take down my claim. But I have run this on both these firmwares:
dune_firmware_bdprime_sony_081226_1216_update1
dune_firmware_bdprime_sony_090220_2125_beta
And none of them can handle euro Transformers on the internal 100mbit port. (I don't doubt you can stream on the Gbit adapter in 100mbit mode though). But this is good info if you want to be able to watch all BD movies on your Primes..
The TVIX 7000 with the closed beta FW (100 BD playbacks) had no issue with bandwidth on european Tranformers at all.
Sound settings are HDMI audio off, Bitstream audio output on Coaxial.
When it hits the bandwidth roof, you will first loose the sound, then you will notice that the image starts to microstutter.
BTW, how do you measure the speed of an NFS share to your Prime? It would be good if we can determine if there is something going on there..
Crion: Have you tried those streams via USB and if so, what's the result?
@crion,
very interesting.....was the tvix streaming from SMB or NFS or something else?
all,
if the tvix can stream the worst case high bit rate BD without gigabit lan,
then it seems that this is an implementation or tuning issue in the player and not a fundamental requirement for gigabit lan, right?
...
BTW, how do you measure the speed of an NFS share to your Prime? It would be good if we can determine if there is something going on there..
press info on a file -> choose read test :)
Thanks Sodium, after 30 seconds, the read speed of my NFS/UDP share of Transformers is 8.6MB/s after 60 seconds it's 8.7MB/s. I'm using HaneWIN NFS server on Windows Vista.
@crion,
very interesting.....was the tvix streaming from SMB or NFS or something else?
all,
if the tvix can stream the worst case high bit rate BD without gigabit lan,
then it seems that this is an implementation or tuning issue in the player and not a fundamental requirement for gigabit lan, right?
cat6man, indeed, The 100 BD Play closed beta firmware for TVIX 7000 had no problems playing European Transformers on my 100mbit network. My network share (NFS/UDP) setup is identical to what I used on the TVIX 7000.
What I see now on the DUNE is that it works the way TVIX did before the 100 BD Play closed FW. Before that FW, TVIX stuttered and lost sound just the way the DUNE does now on internal 100mbit port.
I don't know what smart technology DVICO used for that closed FW, but it sure does work on 100mbit LAN and every high bitrate BD movie.
@crion
that is great news and means we have hope to get BD playback without needing the gigabit lan (existence proof now seen w/ dvico)
for this difficult disk with high bit rate, is there a difference in the bit rate streaming BD versus streaming just the m2ts file? (basically wondering if
the bit rate is the same with m2ts...........if the answer were yes, then testing
m2ts at high bit rate would be sufficient to know if BD streaming will be ok)
My TVIX 6500A can't stream anything with high bitrate over gigabit. Over 100mpb not a chance. I've sent samples to dvico and they recognize the problem. They said will be fixed.... :)
Same network equipment and Dune works perfect.
Regards
VM
P.S. Notice that i say "My TVIX". It seems that tvix hw is different one from another. One user with three tvix reported different functionality.
I have noticed a difference when going into the BD folder and playing the m2ts file directly; compared to starting the movie from the BD menu. It affects the level of sound dropouts on Dolby TrueHD soundtracks (and subsequently image stutter). And also the audio downmixing from lossless.
Settings:
Digital output - Original Bitstream
HDMI Audio - Off
Using coaxial S/PDIF
For Dolby True HD soundtracks using BD menu with this setting will downmix the Dolby TrueHD soundtrack to DD/AC3. And will drop sound on Euro Transformers.
For Dolby TrueHD soundtracks played directly from the m2ts file in BDMW/STREAM directory. The player only downmixes to 2ch Stereo. No sound dropout or stutter on Euro Transformers. Subtitles are disabled in this mode.
Now changing settings to:
Digital output - Decode PCM
HDMI Audio - Off
Using coaxial S/PDIF
For Dolby True HD soundtracks using BD menu with this setting will downmix the Dolby TrueHD soundtrack to 2ch Stereo. Sound drops and image stutters is back on Euro Transformers.
ok............i really have no interest in the movie but i am going to order Transformers from Netflix in BD and test it as a high bit rate torture vehicle on my home LAN
This is hypothetical, but comparing the region A, The Dark Knight compared to region B, the european version with it's more languages seems to have more sound dropouts and image stutters.
I don't think the image bitrate alone is what causes this, but the more languages you add seem to impact.. Perhaps too early to draw any conclusions..
I'm having the same experience on the european (region B) The Dark Knight, when playing from BD menu I have subtitles but sound dropouts and image stutters.
But when going directly into the BDWMV/STREAM folder I can play the movie with it's different audio tracks without sound dropouts or image stutters. I'm losing subtitles unfortunately... But subtitles for file play is atleast doable for HDI to add as TVIX 7000 has it on its 100 BD play closed FW...
I'm with you, bitrate is not the only thing. The more audio streams the bd's or the seperate m2ts stream has the more we ask from our network.
With my nmt's I had to strip out those audio streams to succeed a perfect playback.
The Primes seems to do for me also a better job with bd's when playing the seperate m2ts with all the audio in it. But at least I can leave the audio in and not going through the muxing road. Saves time and any risks to damage the movie.
Darknight I have only now at the moment stripped version on my hdd, so I can't compare this one.
This is hypothetical, but comparing the region A, The Dark Knight compared to region B, the european version with it's more languages seems to have more sound dropouts and image stutters.
I don't think the image bitrate alone is what causes this, but the more languages you add seem to impact.. Perhaps too early to draw any conclusions..
I'm having the same experience on the european (region B) The Dark Knight, when playing from BD menu I have subtitles but sound dropouts and image stutters.
But when going directly into the BDWMV/STREAM folder I can play the movie with it's different audio tracks without sound dropouts or image stutters. I'm losing subtitles unfortunately... But subtitles for file play is atleast doable for HDI to add as TVIX 7000 has it on its 100 BD play closed FW...
thinking out loud here..................if the m2ts file plays ok, and it contains all the various audio tracks, the problem can't be the network speed, right?
in that case, wouldn't this point to the player and its ability to buffer the stream and demux the proper audio in synch with the video? does a gigabit LAN card have a larger/better buffer? is buffering different than for 100mb lan card?
or maybe it is buffering/processing i/o issue for audio/vidoe............in any case,
it isn't clear that network speed per se is the issue
does this make sense?
That read test is just benchmark to test network speed in idle mode.
Reading while decoding video and sound is antoher matter. It happens to shutter when movie plays and press info or other menus. So also depends on how much of the mcu power is used at a given time. Playing only m2ts will have better results as mcu don't have to handle all that crapy BD-J menu.
Regards
VM
I think this post from HDI sums it up. I think about item 2 in his post..:
Dear users of BDPrime and HDCenter players, please share your experience regarding playback of Bluray disks/folders/ISOs - do you have any performance issues with the playback, and what factors does this depend on?
There are at least two kinds of problems that may take place:
(1) Bluray/Java menus are somewhat slow. This takes place for both Bluray disks and Bluray folders/ISOs. This is caused limitations of the Sigma chip and Sigma Bluray SDK, this hardly could be improved.
(2) Video slowdown/stuttering during Bluray playback occuring when playing Bluray folders/ISOs. This is mostly caused by not enough media read speed (especially may take place when working with Java menus, which take a lot of chip resources, and this leads to decreased media read speed); this effect can be reduced by using a faster media (the fastest media kinds are: 1Gbit NFS connection to a good/fast NFS server, USB with EXT2 (preferably) or NTFS HDD, eSATA with EXT2 (preferably) or NTFS HDD).
Please post here:
- Do you think Bluray/Java menus are too slow?
- Do you play Bluray disks, Bluray folders, or Bluray ISOs?
- What kind of media do you use for Bluray folders and Bluray ISOs? (for network media: 1Gbit/100Mbit, NFS/SMB, fileserver hardware; for local media: USB/eSATA, NTFS/EXT2/EXT3) What performance is reported by File Read Test for this media?
- Do you experience playback stuttering sometimes when playing Bluray foldes/ISOs during the main move playback (when you do not work with menus and OSD)?
- Do you experience playback stuttering sometimes when playing Bluray foldes/ISOs when working with menus or OSD?
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