Calibrated Software MXF Import v3 - Manual (Page 49)

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(c) For reasons unknown any MXF file with embedded Audio will have the audio play as ‘silent’ even though
Premiere Pro/After Effects are able to see and correctly report all of the audio properties. This appears to
be fixed in CS6.0
(d) Premiere Pro/After Effects CS5.0.3 Bug – The TimeCode for 23.976 MXF files, QT Ref MOV files and QT
Self-Contained MOV files is not interpreted correctly in CS5.0.3. This may be due to PPro/AE CS5.0.3 not
interpreting the 23976/1000 rate of the TimeCode Track correctly. PPro/AE CS5.5.0 does not appear to
have this issue.
Possible AE Bug: Avid XDCAM MXF files may not import into AE CS 5.0/5.5 with Calibrated{Q} MXF Import – this seems
limited to 25fps files (but could also happen with other frame rates). The same files will open fine in other applications
including Premiere Pro CS 5.0/5.5. The only workaround at this time is to create a QT Ref MOV file of the MXF file using
Calibrated{Q} Import Assist or QT Player Pro 7.6/7.7 and import the QT Ref MOV file into AE.
Troubleshooting
If you have trouble importing MXF files into After Effects or any other issues, please see Chapter: Troubleshooting for the
most common issues or consult Adobe Tech Support and/or your After Effects CS5 Manual.