Exporting "Original" from iPhoto '09 v8.1.2(424) to External Hard Drive

Question

RMS3RD 
Re: error writing to disk     Feb 6, 2014 8:40 AM    (in response to Terence Devlin) 
Terence, not sure of the etiquette here but this is similar to what I am experiencing:
CPE: MacBook Pro 5,5 Core2Duo running OSX 10.5.8 with EHD  Seagate Backup Plus for MAC (1TB) // NOTE: upon reading the posts above I went to the box and noticed that it states for OSX 10.6.8 or higher.
Problem: I have been dragging and dropping files to the new EHD with no problems until I tried to "export" the original format files from iPhoto '09 v8.1.2(424) where there are approx 20,245 items and at 80some GB.  At the point in the transfer of 10,381 and 45.17GB the process fails with an error message to the effect of "Cannot create/Volume/transfer halted" (not exact but essentially what happened). 
Questions:
1. Is this an issue with the Export routine and the OSX inconsistency?
2. Can this be resolved with finding the directory the Originals are stored in and simply dragging and dropping like previously?
NOTE: I am much less concerned with organization and such rather simply preserve the original (RAW) files. 
Any assistance would be appreciated - Thanks,
Larry's Response:
LarryHN 
Re: error writing to disk     Feb 6, 2014 8:57 AM    (in response to RMS3RD) 
@RMS3RD
The etiquette (and most practical method) is to start new thread or new questions - mixing several different questions in one thread confuses the original poster, you(the new poster) and the volunteers helping here - not to mention that Treadjacking is a violation of the TOU
The can not create volume is usually caused by one of two things - duplicate file names or missing originals
What version of iPhoto do you have and what are you trying to accomplish - note that drage and drop does not give you the RAW photo - it gives you the current priview with limited metadata
If you want you can copy the originals (or Masters in current versions) folder and move it someplace to make a copy of yoru otiginals photos - no matter what their format -however it is not really a good idea to muck around inside teh iPhto library - it is too easy to destroy your library by makeing small mistakes
LN
++++++++++++++++++
1. My apologies - here is the new thread.
2. Duplicate File Names: Didn't iPhoto name them when importing from the camera media?
3. Missing Origianls: How would the folder know there is a missing file - wouldn't either be there or not?  Not sure I understand.
4. The Export Wizard does not provide much detail in what Originals to move it seems it is all or nothing. 
Thanks,

Answer 1

1. My apologies - here is the new thread.
Good - it will work better (see you already have more help   )
2. Duplicate File Names: Didn't iPhoto name them when importing from the camera media?
No - when you import iPhoto makes a bit for bit copy of the original using the original file name if possible (and usually it is since iPhoto keeps different importes in diferent folders so duplicate file names are not an issure for iPhto intrnally) - so i you import form different cameras or if your camera rolls over or if yoru camera gets reset and starts its sequence over or if you have yoour camera set t aways start at phtoo1 - or lots of other reasons you can easily have duplicate file names within iPhoto that are no problem until you export a lot of photos - then the finder gets upset because of it
3. Missing Origianls: How would the folder know there is a missing file - wouldn't either be there or not?  Not sure I understand.
The folder knows nothing - you are exporting and if the export routine can not find the original in iPhoto it can not apply edits and metadata changes and export the photo
4. The Export Wizard does not provide much detail in what Originals to move it seems it is all or nothing.
When you export you select one or more photos and export exports exaclty what you selected from one photos to all of yoru photos - you choose
LN