From the shrink guide it states: "First click on the Main Movie and take a look at the percentage you can see to the left. It shows the ratio of the compressed video versus the original video. You want to keep the percentage as high as possible or in other words to keep the compression as low as possible. The smaller the extra compression is the less compression artifacts will appear in the backup copy." If I can't get it at 100% what is a good target ratio to get the backup as near as the original as possible? TIA.