Star Wars is great. The Originals and The 97SEs are fundamentally the same for the most part, but since the DVD release they seem to have changed the way the films actually feel.
Sorry, but no. There have been hundreds of changes done between the originals and the 97 SEs.
The 2004 DVD is basically the 97SE with corrected colours, worse sound mix, new scenes (like “Wesa free” in ROTJ), and re-done effects (new Jabba in E4, new Coruscant in E6). The 2011 Blu-ray is the 2004 master with some minor changes (like the new door to Jabba’s palace) and correction of some lightsabre shots (only the shots which we complained about, and nothing else).