DVD Playback oddities Intel Versus PPC

OK, here's a strange DVD Player problem. I've got a copy of "Pinky & The Brain Volume 1" that plays perfectly in my ridiculously cheap $29 DVD player on my TV plus perfectly ok in my iMac G5.
The exact same disks refuse point blank to play in my new Macbook Pro. They do not show up in Finder and DVD Player will not play them. DVD Player picks up on the fact that its a DVD but then claims that there is no way to play it.
Anyone has any thoughts?

OK I resolved this although I am at a loss to understand why.
I ran a "repair permissions" that repaired nothing whatsoever. Following repair permissions DVD playback worked perfectly. Strange, odd and definitely makes no sense but there we have it.

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DVD playback blurry with Kaffeine/Xine

Hi guys,
I wanted to watch my first DVD under Linux yesterday and I noticed that the image quality is really, really bad compared to watching the same DVD under Windows with PowerDVD.
DVD playback in Kaffeine with Xine engine is really blurry. Does anybody know what the reason could be? There's a lot of options for xine engine parameters in Kaffeine, but I don't have a clue about them. Any tipps appreciated.
I've also tried kmplayer, but the image there has small black horizontal lines in it, which looks really weird. I thinks that's called interlaced, right? I'm a total video noob. ^^
TIA,
Blackhole

[timetrap@darkstar ~]$ mplayer dvd://
MPlayer 1.0rc2-4.2.3 (C) 2000-2007 MPlayer Team
CPU: Genuine Intel(R) CPU T2060 @ 1.60GHz (Family: 6, Model: 14, Stepping: 12)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
115 audio & 237 video codecs
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing dvd://.
There are 9 titles on this DVD.
There are 1 chapters in this DVD title.
There are 1 angles in this DVD title.
number of audio channels on disk: 0.
number of subtitles on disk: 0
MPEG-PS file format detected.
MPEG: No audio stream found -> no sound.
VIDEO: MPEG2 720x480 (aspect 3) 29.970 fps 8000.0 kbps (1000.0 kbyte/s)
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 480 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [xv] 720x480 => 854x480 Planar YV12
V: 0.3 2/ 2 ??% ??% ??,?% 0 0
Exiting... (End of file)
[timetrap@darkstar ~]$
For reference I am trying to play: Planet Earth; From the BBC; Disc 4
mplayer VERY briefly flashes up a window then writes Exiting. . .

DVD Playback flickers

Since upgrading to 10.5 on my iMac Intel 2.0Ghz, DVD playback (at least of certain DVDs) seems to flicker - in both the DVD Player and Front row. It is almost as if the wrong frames overlap or something like that - there are strange 'ghosting' effects as characters move.
Very hard to describe, but very annoying. Is anyone else finding the same thing?
Message was edited by: Nicholas Cole

Yes. I have found the same to be true on my brand new 8 core 2.8 ghz. It must be a DVD Player issue because my old G$ played DVD's flawlessly. I hope a patch comes soon.

Yet another DVD Playback thread...

Gone through every other thread related to DVD playback issues when you do a forum search for "dvd playback". If I try to play a DVD, the disc spins for quite a while while (S)MPlayer just sits there and eventually crashes. Tried this with multiple DVDs, updated all my software...here's the log. It doesn't play in xine or VLC either.
/usr/bin/mplayer -noquiet -nofs -sub-fuzziness 1 -identify -slave -vo xv -ao oss -zoom -nokeepaspect -framedrop -input conf=/usr/share/smplayer/input.conf -stop-xscreensaver -wid 41943052 -monitorpixelaspect 1 -subfont-autoscale 1 -subfont-text-scale 5 -subcp ISO-8859-1 -subpos 100 -contrast 0 -brightness 0 -hue 0 -saturation 0 -dvd-device /dev/dvd -dvdangle 1 -nocache -osdlevel 1 -vf-add screenshot -channels 2 dvd://1
MPlayer 1.0rc2-4.2.3 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 Duo CPU T9500 @ 2.60GHz (Family: 6, Model: 23, Stepping: 6)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
115 audio & 237 video codecs
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing dvd://1.
libdvdread: Invalid main menu IFO (VIDEO_TS.IFO).
ID_DVD_TITLES=19
ID_DVD_TITLE_1_CHAPTERS=5
ID_DVD_TITLE_1_ANGLES=1
ID_DVD_TITLE_2_CHAPTERS=5
ID_DVD_TITLE_2_ANGLES=1
ID_DVD_TITLE_3_CHAPTERS=5
ID_DVD_TITLE_3_ANGLES=1
ID_DVD_TITLE_4_CHAPTERS=5
ID_DVD_TITLE_4_ANGLES=1
ID_DVD_TITLE_5_CHAPTERS=5
ID_DVD_TITLE_5_ANGLES=1
ID_DVD_TITLE_6_CHAPTERS=2
ID_DVD_TITLE_6_ANGLES=1
ID_DVD_TITLE_7_CHAPTERS=2
ID_DVD_TITLE_7_ANGLES=1
ID_DVD_TITLE_8_CHAPTERS=4
ID_DVD_TITLE_8_ANGLES=1
ID_DVD_TITLE_9_CHAPTERS=2
ID_DVD_TITLE_9_ANGLES=1
ID_DVD_TITLE_10_CHAPTERS=2
ID_DVD_TITLE_10_ANGLES=1
ID_DVD_TITLE_11_CHAPTERS=2
ID_DVD_TITLE_11_ANGLES=1
ID_DVD_TITLE_12_CHAPTERS=2
ID_DVD_TITLE_12_ANGLES=1
ID_DVD_TITLE_13_CHAPTERS=5
ID_DVD_TITLE_13_ANGLES=1
ID_DVD_TITLE_14_CHAPTERS=2
ID_DVD_TITLE_14_ANGLES=1
ID_DVD_TITLE_15_CHAPTERS=2
ID_DVD_TITLE_15_ANGLES=1
ID_DVD_TITLE_16_CHAPTERS=2
ID_DVD_TITLE_16_ANGLES=1
ID_DVD_TITLE_17_CHAPTERS=2
ID_DVD_TITLE_17_ANGLES=1
ID_DVD_TITLE_18_CHAPTERS=2
ID_DVD_TITLE_18_ANGLES=1
ID_DVD_TITLE_19_CHAPTERS=2
ID_DVD_TITLE_19_ANGLES=1
*** Zero check failed in ifo_read.c:1361
for vts_tmapt->zero_1 = 0x1b01
libdvdread: Invalid title IFO (VTS_01_0.IFO).
ID_DVD_TITLE_19_LENGTH=6.333
ID_DVD_TITLE_1_LENGTH=1402.600
ID_DVD_TITLE_2_LENGTH=1412.600
ID_DVD_TITLE_3_LENGTH=1412.600
ID_DVD_TITLE_4_LENGTH=1411.934
ID_DVD_TITLE_5_LENGTH=1406.600
ID_DVD_TITLE_6_LENGTH=1271.066
ID_DVD_TITLE_7_LENGTH=483.033
ID_DVD_TITLE_8_LENGTH=740.000
ID_DVD_TITLE_9_LENGTH=279.533
ID_DVD_TITLE_10_LENGTH=260.033
ID_DVD_TITLE_11_LENGTH=203.100
ID_DVD_TITLE_12_LENGTH=591.300
ID_DVD_TITLE_13_LENGTH=573.033
ID_DVD_TITLE_14_LENGTH=218.166
ID_DVD_TITLE_15_LENGTH=185.333
ID_DVD_TITLE_16_LENGTH=51.533
ID_DVD_TITLE_17_LENGTH=122.000
ID_DVD_TITLE_18_LENGTH=225.900
There are 19 titles on this DVD.
ID_DVD_CURRENT_TITLE=1
There are 5 chapters in this DVD title.
There are 1 angles in this DVD title.
audio stream: 0 format: ac3 (stereo) language: en aid: 128.
ID_AUDIO_ID=128
ID_AID_128_LANG=en
audio stream: 1 format: ac3 (stereo) language: fr aid: 129.
ID_AUDIO_ID=129
ID_AID_129_LANG=fr
audio stream: 2 format: ac3 (stereo) language: es aid: 130.
ID_AUDIO_ID=130
ID_AID_130_LANG=es
audio stream: 3 format: ac3 (stereo) language: en aid: 131.
ID_AUDIO_ID=131
ID_AID_131_LANG=en
number of audio channels on disk: 4.
subtitle ( sid ): 0 language: en
ID_SUBTITLE_ID=0
ID_SID_0_LANG=en
subtitle ( sid ): 1 language: fr
ID_SUBTITLE_ID=1
ID_SID_1_LANG=fr
subtitle ( sid ): 2 language: es
ID_SUBTITLE_ID=2
ID_SID_2_LANG=es
subtitle ( sid ): 3 language: pt
ID_SUBTITLE_ID=3
ID_SID_3_LANG=pt
subtitle ( sid ): 4 language: en
ID_SUBTITLE_ID=4
ID_SID_4_LANG=en
subtitle ( sid ): 5 language: es
ID_SUBTITLE_ID=5
ID_SID_5_LANG=es
subtitle ( sid ): 6 language: pt
ID_SUBTITLE_ID=6
ID_SID_6_LANG=pt
subtitle ( sid ): 7 language: es
ID_SUBTITLE_ID=7
ID_SID_7_LANG=es
subtitle ( sid ): 8 language: pt
ID_SUBTITLE_ID=8
ID_SID_8_LANG=pt
number of subtitles on disk: 9
CHAPTERS: 00:00:00,00:00:45,00:11:29,00:22:35,00:23:21,
ID_AUDIO_ID=128
ID_VIDEO_ID=0
MPEG-PS file format detected.
ID_AUDIO_ID=131
ID_AUDIO_ID=130
ID_AUDIO_ID=129
ID_SUBTITLE_ID=3
ID_SUBTITLE_ID=2
ID_SUBTITLE_ID=0
ID_SUBTITLE_ID=6
ID_SUBTITLE_ID=5
ID_SUBTITLE_ID=4
ID_SUBTITLE_ID=1
edit: tried installing ogle to see what i could do with that, this libdvdcss output might come in handy. this doesn't make a whole lot of sense because i have libdvdcss and all installed.
[sa@mootop ~]$ ogle
ERROR[ogle_nav]: ifoRead_VTS_ATRT faild
libdvdread: Error cracking CSS key for /VIDEO_TS/VIDEO_TS.VOB (0x000003a0)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_01_0.VOB (0x00005c80)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_01_1.VOB (0x00018120)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_02_0.VOB (0x00018360)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_02_1.VOB (0x00018380)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_03_0.VOB (0x002379c0)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_03_1.VOB (0x002379e0)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_04_0.VOB (0x0029c000)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_04_1.VOB (0x0029c020)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_05_0.VOB (0x002c21e0)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_05_1.VOB (0x002c2200)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_06_0.VOB (0x002fe7e0)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_06_1.VOB (0x002fe800)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_07_0.VOB (0x0032ce60)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_07_1.VOB (0x0032ce80)!!
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_08_0.VOB (0x0035d560)
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_08_1.VOB (0x0035d580)!!
FATAL[ogle_mpeg_ps]: dvdreadblocks failed
Last edited by sa (2008-05-30 01:19:27)

Sort of looks like hardware issues to me. Do you know that the drive works (i.e. tested in another OS, or it used to work and just stopped?)
Did you try just mplayer dvd:// ? That's quite a long options list you've got there.
What kind of drive is it?

Rolling title flicker in PE11 DVD playback

Hi. I'm a mostly successful user of PE11 for Mac (graduated unceremoniously from PE10). This question is about flickering despite the flicker filter being fully deployed. It seems this phenomenon is harder to suppress in PE11 than in 10?
Specifically... some JPEG and TIFF stills retain considerable flicker even on high anti-flicker setting. Some of these are 600 dpi+. Should the dimensions of stills be a certain value? If so, what?
A soft flicker along horizontal lines seems hard to suppress in video also. SD from Canon camcorder, 24 fps, transferred as mp4s, and dragged as such into the timeline. The flicker does not appear pre- or post-render but appears on late-model flatscreen TV when played back on DVD. Could this be a DVD burn problem or even a TV problem?
Rolling titles created within PE11 appear to be flicker-filterable, but the flicker seems scarcely reduced on DVD playback (white titles, plain font, reasonable slow speed, abt 40 pitch).
Preset: NTSC, 16:9 (can provide more if needed)
I saw a similar post by a PC user from 2012 but the thread apparently died before it was resolved.
Thanks a ton in advance!!
Ric

Ric
I am strictly an Elements Windows user, so I would ask some of the following questions from that perspective as I view your Premiere Elements Mac situation.
a. Does your Premiere Elements have an Anti-Flicker slider (0 to 1.0) in
version 10: Properties Palette/Motion Panel expanded
version 11: Applied Effects/Motion Panel expanded
If so, have you used it for what you are calling flicker?
b. Are your photos all from cameras? Are any freeze frames from video? If the latter, De-interlace may be in order.
c. I have not run into rolling titles that filter so please describe how you are creating these rolling titles...Add Image, duration of title, font style, font size. How are you telling the different between the rolling title flickering versus what is below it in the tracks flickering? Or is there nothing below it?
d. Something to look into
The flicker does not appear pre- or post-render but appears on late-model flatscreen TV when played back on DVD. Could this be a DVD burn problem or even a TV problem?
If you play back a store purchased movie in DVD-VIDEO format on this TV, do you see this flicker?
Just some thoughts for now.
ATR

Burning disk from Intel or PPC, is there a difference when booting?

Hi,
I have a Intel iMac and a PPC PowerBook G4.
I have an .iso of my OS X Leopard 10.5 DVD (backup copy) that I want to burn using Disk Utility on a DL DVD, then use it to install Leopard on the PowerBook G4.
I already have done a .iso file from the disk.
OS X Leopard 10.5 is Intel and PPC compatible, from the same disk.
Question:
-If I do the process of burning the .iso to a DL DVD from a Intel iMac, will it only boot from an Intel Machine?
-If I burn the .iso from the PowerBook G4 under 10.4, will it boot on the PowerPC?
Burn ISO’s using Disk Utility
Insert a blank disc.
Start Disk Utility (/Applications/Utilities/Disk Utility.app)
From the File menu, choose “Open Disk Image” and select the ISO you want to burn
In the list of volumes, select ISO file.
Click the Burn button and follow the instructions.
Thanks,

The point is not regarding whether I should have a backup of my OS X disk, but rather to understand how boot disk are made with regards to the Intel PowerPC nuance.
This applies also if I wanted a boot disk to run some utilities. I would like to burn it and make sure the disk boot on the correct hardware.
I would like to understand if it matters on which machine (Intel) you burn the disk, if it will be used on the different hardware (PowerPC).

Is the DVD playback of poor quality?

I'm still miffed by the quality of the dvd playback. We have dvd players both in a pc, xbox, ps2 and stand along units. Yet somehow the one on my imac looks really rough. Is this more down to the really new hardware? I still have have the same full screen dvd playback glitch on my replaced intel imac so dont know where to turn to.
Sarfraz

I don't think the problem is the dvd player, but the resolution of the monitor. When you stream hi def trailers, it looks awsome. The resolution of the mac monitor is higher than a hi def television. You are not seeing a limitation of the hardware, but the limitation of the source dvd itself. My cable company has some analog channels mixed in with the digital ones and a hi def tv will make a bad picture look worse. The highest settings on hi def tv's is 1080. If you look at the display settings on the mac, you are at 1440. That's a significant difference.

Macbook 2008 - DVD Playback issue

Hello.
I have acquired this macbook about 6 months ago (I think it's early 2008, you twist the button with a coin to remove the battery). I mainly use Windows on it, but it does exhibit the same issue on Mac OS X Lion and Windows 7 64-bit.
DVD Playback stutters a LOT. It's like watching cbs.com on Low Power AMD CPU's (C-50 for example).
Workaround is to turn off hardware acceleration in Power DVD that I am using, then playback is smooth, just fine. I haven't worked with MAC DVD Player settings, but so far that is what I have to do in Power DVD.
I am guessing its some sort of a hardware failure unless someone may have a suggestion. Graphics card is Intel 965, I am typically running at about 30% ram free, cpu is 95% available, hard disk is in good condition.
Thanks.

If you can't solve your issue and no one in the community can help, contact support to speak with a tech support agent at (800) 457-7777.
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Sleeps during DVD playback

Why does OS X.4 display go to sleep during Quicktime playback? It doesn't matter if I'm watching something through FrontRow, Quicktime, or the DVD player.
Specifically, when my MacBook is on battery power, my display sleep comes on within a few minutes. It dims first and then sleeps a short time later. All this is normal behavior EXCEPT I don't want it to sleep while playing a DVD. If I'm watching a DVD, sleep mode should never happen.
My other mac computers do the same thing but its less noticeable since the display sleep delay times are longer.
What settings am I missing or perhaps this is a bug?

I'm sorry my first post was too brief. I should have mentioned my settings before. I'm not a newbie looking for location of Energy Saver settings and I'm not quite sure why it should matter.
What possible combination of settings would allow the computer or display to sleep during DVD or Quicktime playback?
Settings for: Battery
Optimization: Normal
Reduce brightness for this power source- checked
Reduce brightness before sleep- checked
It will never sleep if the mouse is moving regardless of Energy Saver settings, right? Why should the display ever be put to sleep during playback of a DVD? It's like the OS never recognizes DVD & Quicktime video playback as actively using the computer.
Questions:
Does yours go to sleep during DVD playback?
What settings are you using?
I suspect this is an OS X.4 bug as I've caught one of my PPC macs going to screen-saver in the middle of playing a Quicktime movie clip.
Thank-you for your help... I really appreciate it even if it sounds otherwise.

DVD playback issue with Windows Media Player

Hi,
This isn't an Encore specific question, rather, a DVD playback one. Has anyone had issue playing their replicated DVDs in Windows Media Player? I truly believe it's the media player, not the DVD. When we put a DVD in the drive and try to open it in WMP, it jumps right to a video, or jumps directly to the last place we were in a video.... it's not defaulting to the main menu.
Has anyone experienced this? Is it a programming glitch on my DVD? I feel like it's a WMP issue, as it's only happening on certain computers.
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WMP has never been a good player for DVD's. At some point in the past, much of that functionality was disabled my MS, in hopes to reduce piracy. For some versions, no burned DVD would even play, though replicated/pressed DVD's were supposed to play fine.
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Hello folks,
I have a problem with DVD playback using WinDVD Platinum on my MSI 128Mb GF4 Ti4200 (MS-8700). When I play a DVD with hardware acceleration enabled I get a sort of ghosting or delayed flash photography effect similar to that which gives headlights trails. This doesn't occur with the Detonator 40.72 drivers
or MSI 41.07 drivers but occurs with
the NVidia 41.09s, 43.00s and now 43.45 drivers under WinXP SP1. The problem only occurs with hardware acceleration enabled and has happened with both DX8.1 and 9.0. I didn't have this problem with the 41.09s under Win2k SP3.
Does anyone else have this problem or know of a solution.
Thanks,
Morpheus
System Specs:
Athlon XP 2000+
512MB DDR Ram
Asus A7V333-R
Soundblaster Audigy Player
Realtek 8139 based NIC
Win XP SP1
DirectX 9.0

Sound is fine its just the picture that has the problem but I have narrowed it down further by downloading WinDVD Tweaker. If I disable DxVA but leave hardware decode and colour selected the problem isn't present. Therefore I suspect something has corrupted my DxVA drivers however as I originally had 8.1 installed and then installed 9.0 in an attempt to fix this I don't think a reinstall of DX will solve the problem.
Any ideas.
Cheers,
Morpheus

DVD playback: screen goes black in full-screen mode

Hi. Having problems with DVD playback on 1 Ghz Powerbook G4 12 ". When trying to view in full-screen (or even sometimes in maximum) mode, screen simply goes black. Sound still works, but no visuals. As soon as I revert back to Normal size, visuals play fine.
Any ideas ? This is a problem which has developed rather than being with the machine since I bought it. Just for the record, I have 1.25 GB RAM installed and am running 10.4.5.

OK, if you see words, it's not your graphics card. Follow this knowledge base article. The BlackBerry desktop message suggests a corrupted device os. NOTE THIS WILL ERASR ALL DATA SI BACK UP AS POSSIBLE!
How to to recover a BlackBerry® smartphone after all other possible means of recovery have been exhausted.
Remove the battery from the BlackBerry smartphone.
Open a web browser and navigage to the following link.
Click Check for Updates.
Wait for the Device Connection dialog box to appear with no result for pin.
Connect the BlackBerry smartphone to the computer with the battery removed.
Press Ok when the PIN field is populated with the BlackBerry smartphones PIN number or PIN-Unknown is displayed.
Note: Some BlackBerry smartphones may be in a reset loop, which will cause the field to populate and depopulate. This is not an issue; pressing OK when the PIN field is populated will allow the process to move forward.
Select the appropriate version of BlackBerry Device Software and applications for the BlackBerry smartphone, click Next.
At the Review the following options before you begin dialog, insert the battery without unplugging the USB cable.
Press Install update.
1. If a post has helped you, show your appreciation by clicking Like at the bottom of the message box.
2. If a post has solved your question, please click ''accept as solution'' to verify your question has been solved.

DVD Playback Error Problems.

Hi,
When I put in a DVD a initialation error pops up saying Player requires a newer version of DVD Playback frame work
[-70103]. How do I fix this? Thanks.

I would suggest running a system software update.
Keep in mind that it is recommended to back up your important files and data before doing so.
The option to do so should be in your Apple menu.
CG

Dvd-playback is terrible

got a new mac mini dual core .. hooked it up to my toshiba 30" tv .. works fine .. BUT: dvd-playback in frontrow and dvd-player and quicktime isn't like butter, isn't like dvd-playback from my 30 euro dvd-player .. it's terrible! it trembles, it stops, sound an picture aren't simultaneously. i tried it with 10 dvds .. all the same.
so it's useless. i will send it back to apple.
12 PB G4 Mac OS X (10.4.2)

Indeed, resolution does not really matter in your case, as you do not seem to be trying to playback HD video, just normal DVDs. BVut that's not the problem. No Mini, would it be the original 1.25 Ghz with 256 MB of RAM will playback DVDs fine. Your Mini's behavior is not normal, and shows that there is a problem with it. It is not a problem with Dual-Core Minis, or even with the integrated graphics, it is a problem with your Mini. It could be that the optical drive is faulty, or a thousand other things, but your Mini is definitely capable of performing better than it does now. What I mean is that is needs some troubleshooting, or maybe even repair, but that once it gets fixed, DVDs will play fine.
Of course, you can take it back to Apple if you want (it's been 6 days since your original post, so if your really intend to do so, you'd better do it fairly soon). In the meantime you could give us more information about your Mini and the issues you're experiencing (expecially regarding what you meant by DVD playback in QuickTime - see my other post) so that we can try to help you and make your Mini as fast as it ought to be ...

Dvd playback is slow

i have noticed that dvd playback is slow . i use vlc and kaffeine.if the dvd files are on hdd the playback is again slow.i have nvidia 630m optimus

Hi
If this delay appears only playing the movies and audio using the CD/DVD drive then you should check this short workaround:
1) Access the device manager
2) Expand the IDE ATA/ATAPI option
3) go to Primary IDE channel -> Properties -> Advanced settings
4) here you should check if DMA if available was chosen
If its not set to DMA if available then remove the Primary IDE channel from the device list and reboot the notebook.
After the notebook has booted again, check the single point again and check if DMA if available appears again
Greets

DVD Playback oddities Intel Versus PPC

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