Bridge CS4 - MP4 preview playback problem

In Bridge CS4 on Windows, the preview playback of MP4 files sometimes works and sometimes it does not. If not, Bridge shows only an icon in the preview pane and there is no preview start button.
I have sets of MP4 footage that work OK, but other sets can only partly be previewed. Another strange behavior of Bridge is that in some cases after changing the file's name, the program suddenly does not show the preview anymore.
Is there anyone else having the same problems?
Arman

Read this thread, especially post #19 and see if it solves your problem. http://forums.adobe.com/thread/652660?tstart=0
All MPEG files are not the same so just becasue one play does not mean they all play.
If changed files do not show up purge the cache (tools/cache/purge cache) and let it rebuild.

Similar Messages

CS4 - .mp4 Format Playback Problems

Hello! I'm capturing HD 1080i video from my Xbox with a Happague HD PVR capture card. I chose the most common format for recording, .mp4. When I playback the video in QuickTime or in the Premiere preview window (when the video is selected from the list of imported files, not in the timeline), the video is very choppy (dropped frames, pauses) while the audio is fine.
I am running Windows Vista Home Premium 64-bit. I noticed that while I play the video in QuickTime or Premiere, my CPU usage shoots up to nearly 100%, so obviously the files are putting a huge strain on my system. Regular .AVI and .WMV files don't do this.
Is there a some kind of codec or update to Premiere that I can download so that .mp4 files play normally? Once they render in the timeline, they play smoothly, but I'd hate to edit this long project while trying to do precise clipping with choppy video. My laptop is only a year old, so upgrading is unfortunately out of the question.
Is there a sequence preset that better supports this video type as well? Thanks!

Hi,
Regular .AVI and .WMV files don't do this.
You mean not HD ?
You might be taxing your computer hardware and isn't a premiere software problem as much as a "computer resource" problem...know what I mean ?
Rod

Bridge CS4 image Previews are too small

In Bridge CS4 I cannot get the preview images to display anything larger than a large thumbnail view, see image below. I have tried all of the Preferences in Edit menu (e.g. Thumbnail: do not process files larger than set to 10,000 MB, cache options are keep 100% previews in cache checked/automatically export cache to folders when possible checked/cache size slider is set to 50%, software render has been checked/unchecked/generate monitor size previews checked). None of these options change anything for the size of the image preview. I have a DX10.1 ATI Radeon HD4890 XOC 1GB, so my video card is not the issue. I am running Windows 7 Ult x64 on ASUS P8P67 Deluxe with 16GB RAM and over 2 TB of HDD space. So my system should not be an issue either. These are Sample artwork images that were installed with Illustrator cs4. How do i increase the size of these images?
Also, these images are showing everything in the ai image, not the individual images in each ai file. How do i get it to show the individual images in each AI file like they were separate images, like Illustrator?

Actually, you just solved both of my problems with your question. I never thought about how the images were created/saved.
It turns out that for some reason when i re-save the images as version CS4 of course and all options selected in dialog box now the images act correctly and resize accordingly when the separator is moved and will get quite large as they should.
I also had to use my mouse and select each artboard/image inside the file then re-saved with same settings as above to get multiple images to show up with the buttons at bottom of image in preview mode. Now all is good.
These are the default installed sample artwork images. Not sure why they were like this, may have been some kind of format/process error. Thanks a lot Curt Y.
Message was edited by: jst1969

Bridge CS6 CR2 preview display problem

Whilst I can see CR2 (Canon 5D mk 3) files in the main display field, hitting the space bar only shows a 'CR2' icon. what's best action.

What's the fix for this?
It might be cache related, can you select a CR2 thumb that shows good in the preview panel and then with right mouse click choose 'purge cache for selected files' and see if this solves the problem.
If not restart Bridge holding down option key (mac) or control key (Win) and from the menu choose reset preferences.

Bridge cs4 jpeg preview using spacebar - possible answer

I run a 2008 mac pro with dual screens off the dual DVI card, Specs below.
ATI Radeon HD 2600 XT:
Chipset Model: ATI Radeon HD 2600
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: ATI (0x1002)
Device ID: 0x9588
Revision ID: 0x0000
ROM Revision: 113-B1480A-252
EFI Driver Version: 01.00.252
Displays:
DELL ST2010:
Resolution: 1152 x 864 @ 75 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Mirror: Off
Online: Yes
Rotation: Supported
S2111W:
Resolution: 1680 x 1050
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
The EIZo S2111W is my work screen and the Dell is just for pallets etc.
The Eizo connects direct by DVI cable, the Eizo uses a DVI/VGA adaptor from Apple.
So the other day I grab the VGA cable to help a friend and let the DELL chill out for a while. I noticed later that Bridge didn't show previews, kinda crashed, loosing menu bars etc, like perhaps it was trying to display on the Dell. But I didn't realise that, or the cable connection with the Bridge problem until I plugged the cable back in later and noticed Bridge previews working again. Tonight I did the same and noticed same problem, and fix again. I have been thinking about moving from the 20inch Eizo & Dell combo to a nice 30" NEC. Alas, with this problem I may always be forced to have a dual setup... Long live the Dell?
Just wanted to share this strange but at least somewhat solved mystery.
PS the video card in the Mac pro ATO Radeon HD2600 has always been weird. Used to get some wild displays going when i was batching big PS jobs. Gone now.
Cheerios,
Cam.

I just had the idea of switching the gpu (System Prefs - Energy Saver - Better Battery life or Better Performance). Changing from one to the other will force you to log out and back in. Now Bridge is working. I switched back and it's still working so maybe you just need to log out or restart.
No solution, but I'm having the same problem. Just updated to 4.0.4.1. I'm guessing there because I didn't check the number, but I ran the update a couple days ago and went to use Bridge today... I repaired permissions, installed another update today (4.0.4.2) and tried resetting Bridge (option key at start) and nothing has fixed it.
MacBookPro5,2 17" 2008, 4GB ram, Mac OS X 10.6.5

Bridge CS4: Changing preview window's background color

How can I change the preview window's background color? (default is black) It happens that I have some black images with alpha (transparent background) and being all black they blend with the preview window's background color. can this be changed?? I looked everywhere and the only thing I found is how to change bridge's appearance, but not the preview window's bg color. Thanx in advance

Try changing the thumbnail style to HQ or ?, and see if that makes any difference. In Quick thumbs it may not display layers.

MP4 Video playback problem - any idea how to make it work?

Mp4 video files are working when opened from local filesystem but now working when opened from the web
Here is example:
var video:Video = new Video();
addChild(video);
var nc:NetConnection = new NetConnection();
nc.connect(null);
var customClient:Object = new Object();
customClient.onMetaData = ns_onMetaData;
var ns:NetStream = new NetStream(nc);
ns.client = customClient;
ns.play("http://www.voyda.eu/projects/not_working2.mp4"); // here is actual a file so you can test it
ns.play(url);
video.attachNetStream(ns);
Using above code will result in not playing the video file. Interesting think is that the same video file is played well when opening from local filesystem. Just download the file, change ns.play param to "not_working2.mp4"
ns.play("not_working2.mp4");
and see if it's working.

My first guess would be that you're running into a security/sandboxing issue. Can you send me your Flash Builder project file?
Thanks,
Chris ([email protected])

Preview pdf problem in Bridge CS4

Hello,
When I want to make preview prints from PDF files sometimes I see double pages, and I think one is a low resolution file and the other is a high resolution file. So I have a problem to make previews of these double pages in Bridge CS4. Does anybody know this problem and how can I solve this, any help with this is very welcome. I can open the file in Acrobat Reader and I just see one page!
Greets Jo

You must have done a screen shot of the thumbnail as the enlarged version is same size. But can still see difference.
I would revisit your thumbnail setting and make sure it is HQ Iif you want to see edits in thumbs, and check the default ACR setting. Don't assume they are the same as computer can do unexpected things.
Read the link I gave in post #1 as see if you have all the correct options selected.
When you click on thumb does the preveiw panel show the same dull image or a correct one?
It is possible the update fouled everything up, but seems like there would be more complaints. I am still on ACR 6.4 however. Am a slow adopter.

***Bridge CS4 will not show a preview of my .CR2 files***

OK...
I have been searching the internet for a couple hours with no luck. Hopefully someone out there can help...
Equipment:
     Cannon Rebel Xti
     Adobe CS4
     ACR Plug-in 5.5 (latest update installed in its CORRECT place!)
When i open Bridge CS4 all my raw or .CR2 files dont have a preview. Im thinking it could be because the adobe website says that my Rebel Xti minimum ACR plugin is version 3.6? But dont all the later versions support it anyway?? So 5.5 should work right?? Im at a loss if you have any insight at all that would be great!!!! Thanks!!!!!!!!!!!!

Hi Robert
Had the same problem this worked for me.
start up bridge go to preferance/advanced and tick the selection Generate Monitor size previews.
Regards
Tony

And again, Bridge not showing previews, CS4, very aggravating

I've tried all the stuff on Adobe's page about this, but like many others it's not solved my problem. Did the LRoom 2.7 update and the ACR 5.7 update and since then Bridge CS4 only shows crappy icons instead of previews for RAW files. I've tried everything, to no avail.
I'm hoping someone has found a solution for this, it's really a pain and I'm at wit's end.
Thanks.

Thanks, and I've tried all those moves, and still the same thing. Along with
Lightroom 2.7 I'm running Photoshop CS3 so I have two ACRs in the Plugins
folder since CS3 doesn't recognize the new ACR (5.7). When ACR 5.6 was in
there, all was fine.
There is your problem, you've messed up with the plug ins
Forgot about CS3 but I believe that ACR 4.x was the latest for that, CS4
needs 5.x (5.7 is the latest update) and they are not interchangeable.
You can only have one plugin per CS but you can have CS3, CS4 (and soon CS5)
as each one folder in the path for root library/AppSupport?Adobe/Plug Ins
containing the dedicated version of ACR plug in.
If you don't have CS4 but need Raw support for your files you should use the
free Adobe DNG Converter. After converting the originals to DNG you are able
to open them in the CS3 ACR window.
However keep in mind that ACR CS4 had a lot of benefit regarding highlight
recovery and fill light etc as CS5 will even have better results
Everything was working fine until the updates were done yesterday. Even
stranger, when I first launched Bridge after the updating was done, I saw the
preview files for a second or two, then the icons replaced them as if by
magic. Does Adobe have David Copperfield working for them now?
That is normal behavior and far from magic I'm afraid...
Every time you change settings in ACR or make a new default setting or start
using another ACR plug in the files need to rebuild the cache for thumbs and
preview. You only saw a glimpse of the old ones, the new ones should start
to rebuild but there is no plug in for reference anymore

Full Screen Preview is Soft in Bridge CS4

I'm experiencing some notable softening of images when previewing them with full screen toggled on or when viewing images as a slide show. Type of file seems irrelevant (CR2, TIFF, JPEG, etc.) nor does image size make a difference. The strange thing is that when I mouse click on an image after toggling to full screen (which brings it to 100%) the image then appears sharp. Stranger yet, when I open a jpeg previously sized to fit my monitor at 100% I must still click on it to achieve a sharp image. Images otherwise appear fine in all workspaces and no hassles with nVidia 195 drivers. I've tried all options for thumbnail previews, reset preferences, purged cache all to no avail. Is this a bug or does a solution exist? Win XP sp3.

Curt's statement about known problems with Photoshop and Bridge is the understatement of the decade. At least as it pertains to my Nvidia GeForce 9800GT running a Gateway FHD2400 and HP w2408 monitor.
Upgrading from a stable install of CS2 to CS4 was a nightmare that cost me hundreds of hours with Adobe, and alone, with no solution. Even their "clean" utilities failed to remove the software (CS2 & CS4) from my computer for a clean install of CS4. I was forced to do a total format and reinstall of everything on my system. That was a two week nightmare.
After all that a clean install of CS4 still presented the same problems with PS. The final solution was to reinstall PS7 and use it in lieu of CS4. For my digital workflow it works just fine. Photoshop CS2 and CS4 do not like co-existing on the same system with some unknown software driver from the one interfering with the other.
The problems with CS4 were two-fold. The first was an extremely slow scroll rate no matter the video display settings or PS4 settings utilized. By slow I mean the zoom (Ctrl + 0) and then scroll around the screen using a square marquee would take up to 5 minutes on a, roughly, twenty megabyte file with no layers. The same process in PS7 took approximately two seconds per image side. The same image was uploaded to Adobe with similar results. No resolution to the problem came to light after two weeks of back and forth.
The other problem is that PS CS4 constantly comes with up the "...includes graphic card acceleration..." popup window. This, even though it has been disabled and enabled in PS. Neither option prevents the popup from appearing. The problem lies somewhere with Adobe's handling of the pasteboard (that area beyond the actual image) and its interaction with the video driver.
From both of these problems as explained it would seem that Adobe has known of the problem for some time. This iteration of the software works beautifully on a non-Nvidia system and various different Nvidia drivers have been tried. Since Bridge CS4, which is used continuously throughout a fifteen hour workday, works, I suppose I should count my blessings.
The most stable Nvidia GeForce 9800GT driver I have found to be is version 181.20 with video bios version 62.92.52.00.07
I will seriously consider whether or not to purchase the next version of Creative Suite when it appears. My experience has been that Adobe's corporate policy is to charge customers via new versions with fixes for problems that existed in earlier software builds. And then to create new dilemmas!
And thank you for all that you Curt.

Bridge CS4 5D Mark ii RAW preview.

I can't preview Raw thumbnails in Bridge cs4 from my 5d mark ii. I can open them but not preview them. I installed plugin 5.3 update in the right place but no cigar. A year ago I had the same problem with another computer and I adjusted a slider which corrected everything. I'm on a Mac os 10.8. Please help.

If there are no images on the hard-drive, do you mean you are you viewing old images off an external drive, then, or perhaps off the camera’s memory card in a card reader?
To simplify things, try using Finder to copy a brand-new 5D.2 image from a memory card to a newly created folder on your internal hard-drive and then look at it with Bridge and see what happens. Also try flipping to high-quality thumbnails in Bridge.
Otherwise, someone with Mac experience may have to chime in, to confirm if a Mac version of Bridge has its own version of Camera Raw separate from Photoshop, with the possibility of only the PS one has been updated, somehow. You could do a search of your entire hard-drive and see how many Camera Raw plug-ins you find and if their timestamps all match the most recent one you updated. You could also do an Adobe Plug-Ins within Photoshop and see if there is more than one instance listed. This happens if a new ACR is put into the wrong folder and PS still finds it during the initial plug-in scan.
If Adobe has a fix, then someone here likely knows what it is.
To confirm, your subject says RAW Preview, but you’re not able to see either thumbnails or the larger one-at-a-time previews, and the only thing that seems to work is when you choose Open in Camera Raw from w/in Bridge, you can see it and work with it.

Problem with Bridge CS4 reading/editing XMP metadata added in Bridge CS6

Please excuse me if this is a dumb/obvious question. I did try searching the forums for similar problems and didn't find anything that seemed to speak to my issue.
I'm having a problem where Bridge CS4 won't read/edit xmp metadata (specifically, keywords and descriptions in the IPTC panel) that I have entered using CS6. it will read some files, not others. The files are all .mp4s. Of these files, I can read/edit IPTC panel metadata for some of them in Bridge CS4; I can add metadata for all of them in CS6. I see no particular pattern in these files to explain what is and isn't read/editable in CS4.
My question is whether this is a compatibility issue between different versions of CS (in this instance, CS4 and CS6). i know it's a tired refrain to blame software when it could easily be user error, in which case I'd be frankly delighted to know what i'm doing wrong. Please bear with me as I give a few more details.
I'm using macs. I've tried this on multiple systems - for instance, on a mac pro 3 which for some reason has both CS4 and CS6 installed, i can add and edit keywords using CS6, but not when using CS4. Again, in CS4, some .mp4 files read/edit, others do not.
Bridge CS4 blames the files and tells me that the selected file cannot store xmp metadata, and that the properties cannot be modified. To be specific, in the metadata panel it says "this property cannot be modified"; in the keyword panel, it says, "This file (zzz.mp4) cannot store xmp metadata. No changes will occur." This seems odd, because I'm able to add xmp metadata for the same files in CS6 on the same computer, and other computers. I know this problem would disappear if all our computers were using CS6 (or CC), but unfortunately that's not a possibility at the moment. Some of them only have CS4.
Computer details (not an exhaustive list, but two instances): mac pro 3.1 running snow leopard, 16GB memory; macbook pro 4.1 running snow leopard, 4GB memory; adobe bridge cs6 (5.0.0.399) and cs4 (3.0.0.464).
Things I have tried:
Permissions - the files are set to read/write for everyone. Given that I can add/edit metadata in CS6, it doesn't seem to be a permission issue.
Purging the cache - other users seem to have had problems adding metadata in Bridge CS4 where purging the cache for affected files solved the problem. Didn't work in this instance.
Upgrading all affected computers to CS6/CC is beyond my control. I need to figure out why CS4 won't let me read/add/edit xmp metadata, if only for the sake of understanding the broader implications for interoperability.
Any helpful suggestions would be much appreciated.
Thanks,
Kevin

adobe bridge cs6 (5.0.0.399) and cs4 (3.0.0.464).
Without having experience with mp4 files and metadata my observation is that you certainly have not updated Bridge CS6 ( should be 5.0.2.4) and I believe also not the latest version of CS4, can't imaging this also stayed at .0.0 so first try to update both.
And if CS4 can read the data of some files it should be capable of reading them all. Be sure to have the files completely cached first, can take a while.
Other things to try in CS4 is refresh preferences (hold down option key while restarting Bridge and choose reset prefs).
And also check for hidden cache files using menu view/show hidden files. Sometimes those cache files can be troublesome between versions.
If purge cache did not work and reset prefs also failed consider to also delete Bridge plist file and Bridge cache file manual (from user library)

Bridge CS4 Search Not Displaying NEF Files + Keyword Problems

Hello, I am hoping someone can be of service to peculiar problem that apparently nobody else has had.
I am running Adobe Bridge CS4 (came bundled with Photoshop Elements 8) on a 2009 24 inch iMac with 4GB RAM and a 2.6mHz processor running Snow Leopard v10.6.2.
I use Adobe Bridge CS4 to add Keywords to all my photos and edit 14 bit Nikon NEF RAW files. I write the keywords to an .XMP sidecar
file.
Two days I ago I changed something in Preferences->Metadata and the next time I started Bridge CS4 and used the loupe tool on a NEF
file, it took longer than usual for the preview to come up and when it did, it was at 200% magnification instead of 100%. Once the loupe preview showed up, the NEF file had some sort of processing applied to it (it became more contrasted.) This was all within Bridge ant NOT Adobe Camera Raw. I quit the program and the next time I started Bridge, it crashed upon using the loupe tool. I looked up help on Adobe's website and it appeared I had corrupted preferences. Per Adobe's instructions I option clicked at Bridge startup to delete the preferences and purge the cache.
Everything appeared to be normal until today when I searched for a keyword and got 36 random results when I know I have hundreds of
photos tagged with that particular keyword. I started typing in other keywords and getting the same sort of results- very limited numbers of photos I have hundreds of. I always include all subfolders in all searches and used every search method available through Bridge to no avail. The searches always came up with a fraction of the photos I actually have tagged.
I then verified and repaired all disk permissions from the operating system installation CD and Bridge started returning results as
usual. However, when I clicked on an individual file in the Content pane, some of my Keywords started to appear in italics below the rest of my Keyword tree. There doesn't appear to be any rhyme or reason as to why some images will return the Keywords normally and others in italics. Also, sometime the italicized keyword tree will include keywords I edited due to typos and thus no longer existing my normal Keyword tree. I gave the "Make Persistent" command a try. It converts the italics to regular case, but it also doubles the tag so I now have two of that tag (one in the normal keyword tree, and the now converted italics keyword tree.)
Now I'm noticing that all my search results are not including NEF files; just JPEG and the occasional DNG file that I made through Adobe Camera RAW. I'm not sure if this has been the case throughout my problem or if I just noticed it late.
Regarding not displaying NEF files in searches, it appears that it will default to displaying JPEG if it has the option because as of lately I have only been shooting RAW and some of those files are showing up in the still-wonky searches (still displaying random or no photos of keywords.) However, if I manually navigate to a file, I can open and edit NEF files with no problem, they just don't display in any search modes.
Here's two short videos of what happens when I navigate a folder with NEF files by manually searching:
http://www.youtube.com/watch?v=WDjUDZzULKQ
http://www.youtube.com/watch?v=-Y9HkDK7DCs
When I click on a NEF file, the one ahead of it in Content view processes into a more contrasty image and the loupe tool previews jump between 100% and 400% and then change to 100% when dragged or they just process themselves right then and there.

I am running Adobe Bridge CS4 (came bundled with Photoshop Elements 8) on a 2009 24 inch iMac with 4GB RAM and a 2.6mHz processor running Snow Leopard v10.6.2.
Snow Leopard and Bridge CS4 do have some issues. Some have no problems and others have much problems I'm afraid.
I use Adobe Bridge CS4 to add Keywords to all my photos and edit 14 bit Nikon NEF RAW files. I write the keywords to an .XMP sidecar file.
To my knowledge the keywords are written into the XMP Metadata that is saved in the IPTC section of file itself, the XMP data in the sidecar file contain the changes you made in ACR. In other words, the keywords you have added should still be there.
Also see this Knowledge Base article about Keywords:
http://kb2.adobe.com/cps/402/kb402660.html
Two days I ago I changed something in Preferences->Metadata and the next time I started Bridge CS4 and used the loupe tool on a NEF file, it took longer than usual for the preview to come up and when it did, it was at 200% magnification instead of 100%.
Changes metadata in prefs only affects the visability of the fields in the metadata panel. put or deselect a checkmark in front of an option will let you see or not see the field in this panel, the actual data and fields ar still in the file.
it was at 200% magnification instead of 100%. Once the loupe preview showed up, the NEF file had some sort of processing applied to it (it became more contrasted.) This was all within Bridge ant NOT Adobe Camera Raw.
You can change the magnification for the loupe to 100 / 200 / 400 and 800 % using the scrollwheel or with loupe active the + and - keys. Bridge shows the settings that you made in ACR. If you have changed the default Camera Raw setting it will also change the thumbs for this file. A thumbs needs some time to be cached. First it shows with a black border around, when first cached it shows the embedded preview and in the second round it renders the ACR settings and High Quality preview (if you have not disabled this setting). Caching needs some time.
Everything appeared to be normal until today when I searched for a keyword and got 36 random results when I know I have hundreds of photos tagged with that particular keyword. I started typing in other keywords and getting the same sort of results- very limited numbers of photos I have hundreds of. I always include all subfolders in all searches and used every search method available through Bridge to no avail. The searches always came up with a fraction of the photos I actually have tagged.
Maybe you need to let the indexing in find do its work again but it might also be a snow leopard issue. Try an other app (Digital Asset Management like Expresion Media or Portfolio) to check about the keywording and find. You can use a trial version for several days. You have several options to use find keywords. In the panel itself, in the filterpanel uner the keyword tab, when clicking on a visible keyword it only shows the files with that keyword or in the menu Edit / find (shortcut cmd + F) explore the options in this menu and also choose include non indexed and let Bridge start to index your files again.
However, when I clicked on an individual file in the Content pane, some of my Keywords started to appear in italics below the rest of my Keyword tree. There doesn't appear to be any rhyme or reason as to why some images will return the Keywords normally and others in italics. Also, sometime the italicized keyword tree will include keywords I edited due to typos and thus no longer existing my normal Keyword tree. I gave the "Make Persistent" command a try. It converts the italics to regular case, but it also doubles the tag so I now have two of that tag (one in the normal keyword tree, and the now converted italics keyword tree.)
Don't know about that.
Here's two short videos of what happens when I navigate a folder with NEF files by manually searching:
http://www.youtube.com/watch?v=WDjUDZzULKQ
http://www.youtube.com/watch?v=-Y9HkDK7DCs
When I click on a NEF file, the one ahead of it in Content view processes into a more contrasty image and the loupe tool previews jump between 100% and 400% and then change to 100% when dragged or they just process themselves right then and there.
As you can see the black border around some file that disappear after a while or when you select them they have not been cached. You used purge cache so most of your earlier cached results are gone and need to rebuild.

Bridge CS4 - pdf scrambled previews on pages after page 1

I have a set of pdf files from InDesign that have multiple pages. On these files, the first page displays fine, but on subsequent pages the preview is scrambled and I detect some overall display glitchiness while Bridge is showing me a scrambled preview.
I understand Adobe's hooking into OpenGL hardware acceleration, so I checked preferences in Bridge CS4 for acceleration settings. I checked the "use software rendering" option in the Advanced settings, restarted Bridge and the problem disappears.
I'm running an ATI FireGL 3400 card with the latest driver on an XP Pro machine. Not all multiple page pdfs show the problem. The files with the scrambled previews are banner layouts and several letter size page layouts display multiple page previews normally. I'd be happy to provide Adobe support with a file (under 2MB) for testing. So far Photoshop appears to be happy with OpenGL acceleration enabled - except that I get messages that I don't have enough ram to run more than two image windows accelerated with my hardware.

I don't have CS4 but in CS3 I could get the same results as "use software rendering" as when I clicked on "restore down" (middle symbol in upper rt corner of windows screen) even though I enlarged the window to full screen.
In maximize window mode I had several problems with the preview without software rendering, and knew my video card was weak point. I know this is not the same issue but does not cost anything to try it. Don't know why it worked either.

Bridge CS4 - MP4 preview playback problem

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