Avid:CM Offset Out of Range

Pour des raison pas toujours claires, une séquence peut devenir corrompue après le montage d"un clip: fausse résolution, effet corrompu etc.
La séquence fait des problèmes, ne se laisse pas jouer, indique des images offline qui sont bien là.
Remède: Isoler le clip responsable (qui peut aussi être un bout de noir, de silence). Couper le clip. Monter la séquence dans une nouvelle dans un autre chutier, enregistrer. Relogger et renumériser le clip responsable.
CM Offset Out of Range
EFF Cons S Num Out of Range
Logical Duration > 0
NSamps == Total Samps
PGlue Sample Num Out of Range
Sample Num>= 0 MFM Producer
Procedures
This Avid Technical Note describes:
Where to locate information quickly on restoring a copy of the sequence from a floppy disk
Where to locate information quickly on restoring a copy of the sequence from the Attic
How to troubleshoot a corrupted edit in a sequence that Media Composer cannot play
How to troubleshoot a sequence that Media Composer cannot load into the Record monitor
Restoring a Copy of the Sequence from a Floppy Disk
If you have backed up your project to a floppy disk, you can restore a copy of your sequence that you saved before the corrupted edit occurred. For information on backing up bins and projects to a floppy disk, see Avid Technical Note MC021. This procedure is especially useful in rare circumstances in which a sequence is so severely corrupted that it cannot be repaired or if you do not want to search the sequence to locate and replace the corrupted edit.
Restoring a Copy of the Sequence from the Attic
While Media Composer is running, the application periodically saves copies of bins to a folder called the Attic. For information on restoring a copy of the sequence from the Attic, see Avid Technical Note MC028. This procedure is especially useful in rare circumstances in which a sequence is so severely corrupted that it cannot be repaired or if you do not want to search the sequence to locate and replace the corrupted edit.
Troubleshooting a Sequence that Media Composer Cannot Play
Detecting the corrupted edit requires the process of elimination and retracing the chronology of recent edits. When you find the corrupted edit, you can often replace it.
Determining If the Corruption is Related to a Clip or a Media File
To determine whether the corruption is related to a clip or media file:
Click on the desktop pattern.
Drag the media drive icons to the Trash.
This action temporarily unmounts the media drives so that Media Composer does not associate any clips, subclips, or effects with media files. You can mount the media drives at a later time by restarting the Avid system or using AVIDdrive Utility.
Play the sequence.
If Media Composer continues to display an error message, a clip, subclip, or effect in the sequence is corrupted. For information on detecting the corrupted edit, see "Detecting a Corruption in the Sequence" in this Avid Technical Note.
If the sequence plays without incident, a media file that is associated with the sequence or a clip, subclip, or effect in the sequence is corrupted. Proceed to step 4.
Run Disk First Aid or Norton Disk Doctor to locate the corrupted media file.

Before running these drive diagnostic applications, see Avid Technical Note MC004. Failure to exercise the proper precautions can result in the loss of media files.

Drag the corrupted media file to the Trash.
Choose Empty Trash from the Special menu.
Redigitize the clip or subclip that was associated with the corrupted media, or recreate (and render, if necessary) the effect that was associated with the corrupted media.
Detecting a Corruption in the Sequence
To detect a corrupted clip, subclip, or effect in the sequence, try these suggestions:
Divide the sequence into sections, and copy the sections to the Clipboard. Load each section into the Source monitor and play it. When you find a section that exhibits the problem, divide the section until you find the clip, subclip, or effect that is causing the problem. For information on copying to the Clipboard, see the Avid Media Composer User"s Guide.
When an error message suddenly appears while Media Composer is playing, the cause of the problem is often the last edit that you made or the last effect that you rendered.

Activate one audio or video track at a time and play each one to see if you can isolate the problem to a particular track.
View the sequence in the Timeline with different clip information. When Media Composer displays the error message "CM Offset Out of Range," the clip name does not appear on the icon of the corrupted clip in the Timeline. In some cases, audio timecode does not appear on the icon of a corrupted clip. For information on Timeline view options, see the Avid Media Composer User"s Guide.
Use the Fast Forward and Rewind buttons to move the Position Indicator in the Timeline through each edit in the sequence. The error message may appear when you move the Position Indicator to a particular edit. For information on selecting Composer settings for Fast Forward and Rewind, see the Avid Media Composer User"s Guide.
Replacing the Corrupted Edit
If the edit is a master clip or subclip:
Locate the master clip or subclip in its bin.
Load the master clip or subclip into the Source monitor.
Click the Play button.
If the master clip or subclip plays, remove it from the sequence, and edit it back into the sequence.
Do not use the Undo command to edit the clip or subclip back into the sequence. Using the Undo command may return the corruption to the sequence. Use an edit button such as Splice, Overwrite, or Replace.

If the master clip or subclip does not play, redigitize it, and edit it back into the sequence. If the problem continues, relog the clip, redigitize it, and edit it back into the sequence.
If the corrupted edit is a transition:
Locate the master clips or subclips before and after the transition in their bin(s).
Load each master clip or subclip into the Source monitor and click the Play button.
If the master clip or subclip plays, lift or extract the corresponding edits from the sequence, and recreate the original edits in the sequence using the master clips or subclips in the bin(s).
Do not use the Undo command to edit the clip or subclip back into the sequence. Using the Undo command may return the corruption to the sequence. Use an edit button such as Splice, Overwrite, or Replace.

If the master clip or subclip does not play, redigitize it, and edit it back into the sequence. If the problem continues, relog the clip, redigitize it, and edit it back into the sequence.
Occasionally you cannot remove the corrupted edit because the sequence is severely damaged at this point. If you suspect this problem, select a few frames before and a few frames after the edit, and lift it out of the sequence.
If the corrupted edit is an effect:
Lift or extract the corrupted effect from the sequence.
Recreate the effect using the effect parameters of your choice.
Edit the effect back into the sequence.

Do not use the Undo command to edit the effect back into the sequence. Using the Undo command may return the corruption to the sequence. Recreate the effect entirely, and then edit the new effect into the sequence.

Render the effect, if necessary.
Troubleshooting a Sequence That Media Composer Cannot Load into the Record Monitor
If an error message appears when you load a sequence into the Record monitor:

Click on the desktop pattern.
Drag the media drive icons to the Trash.
This action temporarily unmounts the media drives so that Media Composer does not associate any clips, subclips, or effects with media files. You can mount the media drives at a later time by restarting the Avid system or using AVIDdrive Utility.
Load the sequence.
If Media Composer continues to display an error message, the sequence is severely corrupted. Your only options remain to restore a copy from a floppy disk or from the Attic.
If the sequence loads and plays without incident, a media file that is associated with the sequence or a clip, subclip, or effect in the sequence is corrupted. Proceed to the next step.
Run Disk First Aid or Norton Disk Doctor to locate the corrupted media file.

Before running these drive diagnostic applications, see Avid Technical Note MC004. Failure to exercise the proper precautions can result in the loss of media files.