Nancy, There may be several reasons why this book has such a high KB file size. the one reason I can think of is that the Braille book was submitted separately. But, more importantly, the final DAISY size depends on the original/validated file size. Basically the BRF file is a plane-text file with braille contractions represented by ASCII characters and requires much less space to store than a fully-formatted book that contains variety of characteristics. Unless someone goes through both versions of the book to compare page-by-page, I'm not sure we'll learn the reason. Pratik _____ From: bksvol-discuss-bounce@xxxxxxxxxxxxx [mailto:bksvol-discuss-bounce@xxxxxxxxxxxxx] On Behalf Of Nancy Hill Sent: Monday, November 20, 2006 7:12 PM To: bksvol-discuss@xxxxxxxxxxxxx Subject: [bksvol-discuss] Why is there such a discrepancy in file size? Primates (World of Animals: Mammals Vol. 4) by PAT MORRIS, AMY-JANE BEER Choose Format to Download: DAISY Digital Talking Book Format (2004 KB estimated) BRF Braille Digital Format (379 KB estimated)