aTrack is an ITReference* object, value is an NSImage* object, initialized via a URL to a jpeg.

[[[[[aTrack artworks] data_] set] to:value] send];

I get the following message in GDB:

2010-03-09 16:59:42.860 Sandbox[2260:a0f] Can't pack object of class NSImage (unsupported type): <NSImage 0x10054a440 Size={0, 0} Reps=(

I then tried the following code:

NSData *imageData = [[NSData alloc] initWithData:[value TIFFRepresentation]];
[[[[[aTrack artworks] data_] set] to:imageData] send];

and get this message instead

2010-03-09 16:46:09.341 Sandbox[2193:a0f] Can't pack object of class NSConcreteData (unsupported type): <4d4d002a 00000000>

In the AppScript documentation, it says that the "data" property of the "artwork" item is a PICTPicture image.

How do I convert an NSImage to a PICT? Am I using the AppScript all wrong?