Question about LaCie d2 Extreme 250GB External with Triple Interface USB 2.0/Firewire 400/800 - 300790U ... Hard Drive

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Lacie 250GB external HD (Error Code - 1309),

I just got my HD and am trying to put some quicktime files onto it. A few have worked but for more i just get the (error code 1309), Sorry the operation could not be completed because an enexpected error occurred. What does this mean?

Posted by Heather Mlodzik on


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Files over 4Gb in size cannot be copied on to a fat32 formatted disk

you need to reformat the drive to NTFS to copy files over 4GB
(but this would involve putting those large quicktimes elsewhere
since reformatting your drive will wipe it)


make disk images of your quicktimes using a program like dropDMG, or the disk utility in your applications folder.

then use split & concat to split the dmg files into smaller chunks, copy them over then recombine on the target drive

Posted on Mar 31, 2008



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For systems prior to OS X; error -1309 fileBoundsErr: file's EOF offset mark or size is too big If your disk is formated as HFS rather than HFS+, you can get this error. For OS X; Error 1309 is a file bounds error. In other words there is some discrepancy with the file's size or end-of-file marker, or some variation on this. This sounds like a read error not a write one i.e the problem lies with the original file. Now, you may ask, "How do I make it HFS+?"... You would have to reformat the drive to change the formatting to HFS+ (Extended). Backup anything you can't replace on that disk, then use Disk Utility in your Utility folder to reformat the disk. Use Extended formating option.

Posted on Mar 27, 2007


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