Very interesting, can't say that I've tried that. ODBC can certainly handle Binary data, the issue is with Filemaker. So the importer is not limited. ESS definately IS limited.
Will have to experiment a bit with some different types of binaries.
FYI, I was able to do an import on a large table and successfully generate a 840 GB filemaker file. A spot check of 25 random documents shows they are identical to the source data. Now my task is using 360works scriptmaster to rename all the files in the containers to their actual names so that I can use 360Works scribe to extract the text contents to a field for all supported file types (docx, xlsx, pptx, pdf etc.) Then we'll see how long it takes to index all those fields and how fast full text searching of everything is....
840GB, yowzer. Keep us posted. ;-)