For testing purposes, we have installed V2I protector 2.03 and Acronis Enterprise edition on the same machine. First base backup was almost identical, with Acronis slightly smaller at standard compression. However.... Incremental size of backups (daily after base backup) V2I vs Acronis (rounded) 60mb - 400mb 40mb - 520mb 120mb - 1100mb (!!!) What's with the incrementals? They are four to eight times less efficient than V2I?