This article describes the new features in QuickTime 4.1.

Supports Apple PowerPC-based computers only.
QuickTime 4.1 will not install on Macintosh computers with a 680x0 processor. It is also only supported on Apple computers with a PowerPC processor.

Supports Intel Pentium-class computers only.
QuickTime 4.1 is not supported on computers with processors older than the Intel Pentium, such as the 80486. Pentium-class computers include corresponding non-Pentium brand processors such as the Intel Celeron and the AMD Athlon.

Plays MP3 VBR files.
You can now play MP3 media (audio) using variable bit rate compression.

Access to controlled sites.
You can tune in to more sites now that QuickTime supports logging on to sites with controlled access, such as pay-per-view sites. All you need to do is set up an account with the content provider, then enter your user name and password when you want to access that site.

Improved navigation through firewalls.
Your QuickTime Settings control panel has additional options for Streaming Proxy settings and a new Streaming Transport panel. Click the Auto Configure button in the Streaming Transport panel to improve streaming performance.

Browser Plug-In settings via control panel.
You can configure the browser QuickTime Plug-in option in the QuickTime Settings control panel. Previously, this had to be configured via a pop-up menu in an active QuickTime movie.

Supports Mac OS 7.5.5 or later (Mac OS version).
System 7.5.5 is the base Mac OS version supported on Apple PowerPC-based computers.

Control Strip (Mac OS version ).
You can use the QuickTime control strip to launch QuickTime Player, PictureViewer, and QuickTime control panel to adjust Settings, as well as select a streaming Channel from a channel list to view with QuickTime Player.

AppleScript support (Mac OS version ).
You can use AppleScript and the QuickTime scripting dictionary to automate tasks.

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