有没有人碰到这种情况？ This movie cannot be played on this computer.

下载完电影处理文件时没响应，强行退出了itunes，后来去临时文件夹用itunes打开m4v文件在播放列表里能看到了，但是打不开

plist文件
<key>rentalID</key>
<integer>134217736</integer>
<key>segment-md5</key>
<dict>
<key>partial-md5-info</key>
<string>486173680000000300000000008EDD7BED4B9617D62E086440703B7A5C4914CAF721D409AF1DB77BB6A6F334A69A47B20C27546D54517CDF765B0BD5894D05057FD728F08C5A108BEE53F328A380A8290368DC8AB8633BEB238D8D69875ED5EEF721D409AF1DB77BB6A6F334A69A47B20C27546D54517CDF765B0BD5894D05057FD728F08C5A108BEE53F328A380A8290368DC8AB8633BEB238D8D69875ED5EE</string>
<key>partial-md5-offset</key>
<integer>7213079931</integer>
<key>partial-md5-start-offset</key>
<integer>7203717120</integer>
</dict>
<key>size</key>
<integer>7213079931</integer>