Yeah p similar, my buddy already had a modded battery (I think he took it apart and cut one of the wires inside) probably around 2005-ish, idr how long it took to copy, but probably took like 20 mins, but also it was easier/faster to just download the iso file online.
Boards of canada did this on the last track of Geogaddi so that the total runtime of the album was 66:66 😎