Why is Quicktime sooooo slow?

I have a G3 700mhz Ibook with ATI Radeon M6 16meg, 640meg ram, on a completely fresh install of 10.4.7 with all updates. Yet when I watch quicktime trailers in Safari they are extremely laggy. Even after they fully load, it will play only a few frames at best. The audio is fine, but the syncing problems are horrendous.
Also I am not watching any of the 480p stuff or higher, just the basic trailers at the large size (even medium has issues).
DVD plays fine, youtube pretty good as well as google video, but I hate to see quicktime run so slow.
Anything I can do? I have disabled Dashboard Widgets as well, and have almost no other processes running (like I said fresh install).
Ibook G3 700 Mac OS X (10.4.7)

The new H.264 video codec is the issue.
It needs as much processor as you can throw at it.
QuickTime playback (by design) drops frames during playback if the processor can't keep up. That is why the audio portion continues to play normally but the video "stutters".
Pick the smallest dimensions when viewing trailers. These are smaller files sizes and lower data rates.

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Why is it sooooo slow

I just got one of the brand new Intel macs, fastest one. It is sooooooooooooooooooooooooooooooooooooooooo slow! I tried doing a simple photoshop job and it took a long time to load and after that there was slight lag, if I changed the opacity it would take about 1.5secs to change what I see. On my Athlon 64 with 512mb of ram and a Geforce 6200 PCI it has no lag and I can even do my 3D modeling under windows fine. (I am using bootcamp for one 3D modeling)
And its not jsut Photoshop just going down to the dock has lag, it does pretty much everything this guy talks about in this video
http://video.google.com/videoplay?docid=-6553260189868317794
That is almost exactly how I feel, I sent it back to where I got it and they said it was running normal.
iMac Mac OS X (10.4.7) It *****

Hello,
If you have had your machine for a month, then there is no reason that Spotlight would be causing your performance delay.
And, you are beyond your return period.
So, your options at this point are to get it repaired if there is a defect, find the software problem if that is the issue, or sell it if it cannot meet your needs.
For trouble-shooting:
First, make sure that there isn't a corrupt cache or even maintenance tasks that have been left unperformed.
You can perform almost all maintenance tasks from a single spot in the free utility OnyX.
http://www.titanium.free.fr/pgs/english.html
Just perform all the cleaning tasks and all of the maintenance tasks in that program (basically check all the options and run routine). Make sure you also run the "repair permissions" option.
Then, see if after performing each of those options if your performance feels better.
Note: You may elect not to perform the task (uncheck the box) that clears out old mail downloads / attachments if you don't want to risk losing any old items in your e-mail folder. The rest of the options don't do anything that would cause you to lose anything.
Beyond that, you could run a benchmark to compare your performance against that of people running the same system and configuration as yourself.
http://www.xbench.com/
You can see other Intel system results here:
http://db.xbench.com/search.xhtml?text=intel
Look at the iMac Intel CoreDuo's in that list and find ones that are very close or identical to your configuration. Make sure you are comparing systems with the same speed processor as yours.
Click on each system in the list to see a break-down of the results for each individual category (hard drive, memory, graphics, processor, etc.).
Compare your numbers against those numbers and see if your system performs comparably to systems with the same processor and memory configuration as your system (each persons system information should be included with their results).
That might give you an idea of where your system fits in terms of other systems.
Also, to get the most accurate results in your test, run the benchmark immediately after a restart. You don't want anything else running while performing the benchmark tests. You want the entire system free to run the test so you get accurate numbers.
Anyway, see what you find out. This might help you to determine if you are seeing performance comparable to others.
If your results come in comparable to the others, then you know that the machine is working properly. That would tell you that it just isn't meeting your expectations.
If the numbers for your system are dramatically lower than the others like your system, then you may need to investigate and see why your particular system is not performing as well.
I hope this helps.

Why is quicktime slower when using multiple mdat atoms

Hi,
I've been trying to generate a mov file and I noticed that the more mdat atoms I put in my mov file the more the file takes time to load on QuickTime, iTunes.
Even worst, on the iPhone the file takes more than 3 minutes to load.
If there are too many mdat atoms quicktime even says that the file is invalid ( error -2004 or -2002, I don't remember exactly).
Why is quicktime/iTunes slower when using multiple mdat atoms ?
Thanks,

Yeah! Problem solved: It's a QT issue.
Cause: Mac Update Software downloaded a faulty QT.
Solution: Download QT from Apple's QT site.
Great to have the Video back

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Is there anyone who has the same problem with me? I hope I can get some useful suggestions from you guys. Thanks!

The blog post below lists several reasons why InDesign can be slow:
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I've been using Adobe Photoshop CS5.1 for two years now, and for some reason it seems to have the problem of slowing down after using it for a while, so if I'm working on a project I have to keep closing it and reopening it to get it fast again. It's weird because it doesn't seem to matter how much stuff is on the canvas, it's just how much I've drawn and hit undo and erased or did anything, After like 5 minutes of straight work it just gets too slow for me to work in, like when I switch tools or change the color it takes a couple seconds to respond. So literally every couple minutes I have to restart Photoshop and open the same file.
What's really odd is that sometimes Photoshop will work perfectly fine and stay lightning fast for hours. Like, for the last couple of months it's been 100% fine, but since a few days ago it started to have this "slowing down" issue again. Every couple months it seems to decide to be perfectly fine or just really annoying. I didn't change anything in my computer.
It can't be my computers specs or my settings in Photoshop, but I will tell you all of that anyway.
OS - Windows 7 64-bit
CPU - Intel Core 2 Quad Q6600 @ 3.0GHz
RAM - 12GB DDR3 @ 1333MHz

There is no malware scanner running, in fact I have tried closing out all other applications and unnecessary processes to help improve performance. No luck.
Also, my post actually wasn't quite finished, but my internet shut off on me last night and I guess that just automatically posted whatever I had done before then. What's even better is that the forums won't allow me to edit it. What great features!
Anyway, here's the FULL spec sheet of my computer...
OS - Windows 7 64-bit
CPU - Intel Core 2 Quad Q6600 @ 3.0GHz
RAM - 12GB DDR3 @ 1333MHz
GPU - NVIDIA GeForce GTS 450 1GB
Storage - 1x 128GB SSD (OS installed on), 1x 750GB HDD, 1x 160GB HDD
I have the 64-bit version of Photoshop CS5.1 Extended, installed on the SSD. Here's the settings I have in the preferences:
Memory Usage - 100%
Scratch Disks - All 3, SSD 1st, 750GB HDD 2nd, 160GB HDD 3rd
History States - 100
Cache Levels - 8
Cache Tile Size - 1028K
I have fiddled with these settings and restarted Photoshop countless times. In the end it's the same exact result: Photoshop slows down after a few minutes of work and I have to restart it. I have about 50GB free on the SSD, 150GB free on the 750GB, and about 140GB free on the 160GB.
I don't understand why it gets so slow even when my RAM usage only makes it up to about 45%. Why doesn't it just utilize ALL of the memory like I told it to?
I've tried setting cache to 1, 2, and 4, same result. Cache tile size to all the different settings, same result. History states to an extremely low level like 10, same result. I just don't understand why Photoshop is doing this, especially because it decides to speed up on its own every couple of months...

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How to Fix a Slow iPad
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QuickTime launches slow but only the first time

QuickTime is slow in Mac OS 10.7, that's been widely discussed.
In my case, QuickTime is slow to open up a video file (MP4, AVI, WMV, etc,), but only the first time. After I've successfully opened up the one video file, all subsequent video files open up quickly, even after quitting QuickTime.
However, after a restart it's the same old situation again.
Is QuickTime installing something, then removing it when the computer shuts down?

QuickTime is slow in Mac OS 10.7, that's been widely discussed.
In my case, QuickTime is slow to open up a video file (MP4, AVI, WMV, etc,), but only the first time. After I've successfully opened up the one video file, all subsequent video files open up quickly, even after quitting QuickTime.
However, after a restart it's the same old situation again.
Is QuickTime installing something, then removing it when the computer shuts down?

I am updating my iphone 4s to ios 5.1 now. Why it is super slow??? It will take upto 9 hours to finish!!!!

I am updating my iphone 4s to ios 5.1 now. Why it is super slow??? It will take upto 9 hours to finish!!!!
What should I do?? waiting or stop updating?

"I am updating my iphone 4s to ios 5.1 now. Why it is super slow???"
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Why does quicktime run like crap?

Why does quicktime run like crap, skips frames like crazy? If I install xvid codecs instead and play the movies in windows media player they play without a glitch. Why is that? I'm must say I'm not impressed with the first apple software I've tried. Also another annoying thing... I don't want iTunes and all the other crap with it! Just quicktime. Also almost all the menu's are blocked with pro upgrade.... do apple customers have to buy quicktime pro as well?

Impossible to say, "allp", without knowing anything about your system, the version of QT you're running, nor the movies you're trying to play and from what medium you're playing them. QT movies work just fine on my Dell Dimension 8200 (specific specs on request).
You can download QuickTime alone, without iTunes, here.
And yes, the menus involved with editing and exporting will almost all be nonfunctional until you buy the Pro upgrade. And it's the same with Macs as with Windows; we all have to purchase the Pro upgrade to get that functionality.

Why does Quicktime tell me it can't play certain videos created with my Phantom 2 v3 drone ? I fly it and switch back and forth from video to still pics and while I may have filmed four videos sometimes Quicktime tells me that one of them can't be pl

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first; I use Perian, that helps even though it is no longer supported, (must have for avi files)
the apple-cores at apple have gotten very sloppy -- quicktime is a bit finicky and flakey.
example,   occasionally (when copy file from quad's card to hard drive) the avi will show up as a 'mov' file and qt plays it no problem and no conversion.
but that is very occasionally, most of the time qt won't convert the file,   -- iMovie won't open an avi without Perian installed , I don't know how that effects qt.
qt 7"pro" is no good either, (qt 10 does everything it does and for NOT the extra $35)
I have gone to VLC and MPlayerX for direct playback for drones and cameras.

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Vijai

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i cannot find quicktime pro anywhere on my computer
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You get more options with Pro.
Open Quicktime Player.
i just spent 50 bucks on a quicktime to avi converter and the software will not recognize mpeg4 as quicktime
Select a file, right click and select *Open with*, then select iTunes.
Tick *Always use this application* (or whatever is says).

Why is Quicktime sooooo slow?

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