TOPIC
Movies may occasionally skip or stutter when you watch them from a DVD-Video disc on your computer. This article can help you reduce or eliminate skipping and stuttering.
DISCUSSION Outdated Software Make sure you have installed the latest version of the Mac OS and Apple DVD Player software. If you are using Mac OS 9 or later, you can install the latest versions using the Software Update control panel. You should also update to the latest version of QuickTime, which can be downloaded from http://www.apple.com/quicktime . Other Open Applications Some application programs periodically access the hard disk while they are open. Common examples of this are programs with an auto-save feature and email programs that check email on a regular schedule. To ensure that open applications don't interfere with movie playback, quit all open programs before watching a movie from a DVD-Video disc. Virtual Memory In some cases virtual memory can interfere with movie playback. Quitting all other open applications should help, but if not, and you have more than 64 MB of RAM, try turning off virtual memory in the Memory control panel. You must restart for the change to take effect. Color Bit Depth Sometimes decreasing the color bit depth can directly reduce skipping. Set the colors to Thousands and then open the Apple DVD Player application. The movie plays in full color and is not affected by this setting. Network Time Server If you have set the Date & Time control panel to use a Network Time Server, an invisible background application periodically attempts to connect to a server. This can briefly interrupt a movie's playback. To prevent this from happening, deselect Use a Network Time Server in the Date & Time control panel before watching a movie. DHCP Servers If the TCP/IP control panel is set to connect to the Internet using a DHCP server, but you aren't connected to the Internet, or if the DHCP server is not available, your computer may pause every five minutes or so. This pause causes the movie to stutter. To prevent this from happening, temporarily make TCP/IP inactive in the TCP/IP control panel. You may need to change the User Mode to Advanced in order to do this. Extensions and Control Panels A third-party extension or control panel could cause occasional delays in the system, affecting any real-time playback. Use the Extensions Manager control panel to reduce your extensions set. Appearance Sounds Enabling an Appearance sound track (from the Sound tab in the Appearance control panel) can cause sounds to stutter in the Apple DVD Player and other applications that play real-time audio. Make sure Appearance sound tracks are turned off. You may need to restart the computer before the sound quality improves. Speakable Items Having Speakable Items turned on can tax the processor enough to cause stutter in Apple DVD Player. Turn Speakable Items off in the Speech control panel while watching movies. Dual-Layered DVD Discs Movies that come on dual-layered DVD-Video discs can pause up to a second when switching to the second layer. Newer titles that use this technology and are susceptible to skipping/stuttering have a warning on the back of the case. Other titles use an advanced form of duplication that prevents this behavior. These behaviors are not specific to Apple computers. They happen on every DVD player. AirPort If your computer uses AirPort, use the AirPort application or control strip module to turn off AirPort networking. Sherlock Indexing In Sherlock, open the Find menu and choose Index Volumes, and remove the mark from the Use Schedule checkbox for all of the volumes listed. AppleTalk AppleTalk and File Sharing can slow the computer down and cause skipping. Follow these steps to make AppleTalk inactive:
2. Choose User Mode from the Edit menu. 3. Click Advanced. 4. Click Options. 5. Click Inactive. 6. Click OK. |
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| Document Information | |
| Product Area: | Apple Software |
| Category: | General Apple Software Topics |
| Sub Category: | General Topics |
| Keywords: | hts, ksts, kpbfw, kpbg4 |
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