Getting beach balls on some videos using Quicktime X with Perian

Hi, Some of my videos play perfectly using Quicktime X with Perian and with others I get the spinning beach balls. These videos seem to play fine when using VLC. Is this normal? Thanks

Is this normal?
It could be. The "spinning ball" indicates the application is "busy" -- i.e., actively involved in some activity. QT is very touchy about things like timecode breaks and proper file terminations. In some cases, like "muxed" MPEG-2 content, the QT player actually has to trace the data stream from beginning to end before playback will begin. VLC, on the other hand, containes its own codecs and is geared to Windows specific contetnt types which may not rely on external time references like QT or whose data may be open-ended or contain numerous timecode breaks. Additional delays may be caused by continuous switching between 32- and 64-bit modes of operation and/or other complications/problems.

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    Hardware Information:
              MacBook Pro (13-inch, Mid 2012)
              MacBook Pro - model: MacBookPro9,2
              1 2.9 GHz Intel Core i7 CPU: 2 cores
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    System Software:
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    Disk Information:
              TOSHIBA MK7559GSXF disk0 : (750.16 GB)
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                        Macintosh HD (disk0s2) / [Startup]: 749.3 GB (250.13 GB free)
                        Recovery HD (disk0s3) <not mounted>: 650 MB
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              Apple Inc. BRCM20702 Hub
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              [kext loaded] com.bresink.driver.BRESINKx86Monitoring (9.0) Support
              [kext loaded] com.rim.driver.BlackBerryUSBDriverInt (0.0.74) Support
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