Dear all We are about to launch on a large digitisation project and at the eleventh hour an issue has come up over which format we should be using. The primary purpose of the project is to provide long term backup copies, although obviously once we have the images we can look at additional functionality. My question, therefore, is whether TIFF is still the best format for long term preservation (this is our current position), or whether JPEG2000 would be a better option. Any thoughts that people have on this today (this morning would be even better), as my timeframe is quite tight, would be much appreciated! thanks Polly Polly Parry Museum Archivist & Records Manager Natural History Museum Contact the list owner for assistance at [log in to unmask] For information about joining, leaving and suspending mail (eg during a holiday) see the list website at https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=archives-nra