[AccessD] Memo field - export data

Hi

Under pressure to get a job done!!!

1. Have a table (from paradox) inA97. 
2. Trying to export to text file
3. One of the fields is a memo field - field may contain 10, 20, 30000
characters of data.
4. Export does not copy out all this data (only 500 or chars)
so...........
5. Have written code to print line into a text file (open/write etc) but
this crashes when I come to a record where the field contains large
amount of data as above.

I am missing something?  Do I need another approach (appendchunk?) or
are my problems related to dodgy/corrupt data.

Many thanks in advance

Richard