Elizabeth, There are at least two good reasons I can think of why I typically save to .Kes format whilevalidating or editing. 1. .KES files are capable of holding your place if you want to end your particular edit session. So, when you come back, you don't have to find the last place where you left off. 2. When opening and saving files, >KES files perform much better than RTF conversions. I'm in a habit of saving material quite frequently while I'm editting. This makes a great deal of difference in terms of waiting for the save to complete. There are other little advantages such as bookmarks, etc. But, those may or may not be useful, depending on your particular editing style. Pratik -----Original Message----- From: bksvol-discuss-bounce@xxxxxxxxxxxxx [mailto:bksvol-discuss-bounce@xxxxxxxxxxxxx] On Behalf Of Mike Pietruk Sent: Friday, July 29, 2005 7:46 AM To: bksvol-discuss@xxxxxxxxxxxxx Subject: [bksvol-discuss] Re: File format question Elizabeth I to, when downloading files and opening, initially save as a .kes in K1000. I cannot give you a good reason except that is the preferred K1000 file type. What I've noticed, however, is that when saving as a .rtf just prior to uploading to BookShare, there are seldom uploading problems. .rtf files continually opened and closed in K1000 seem to have greater chance of not being recognized as .rtf by the BookShare system. Hence, I edit as .kes and only save as a .rtf as a final step. This may be sheer coincidence and nothing more.