Successfully using PS3 ISO Tools with firmware 4.89 involves a multi-step approach: preparing your ISOs correctly on a PC, setting up your PS3 with the right firmware and backup manager, and understanding the quirks of encryption and file formats.
The Ultimate Guide to PS3 ISO Tools 4.89: Managing Your Library on Firmware 4.89 ps3 iso tools 4.89
: Useful if you only need to break down large files without re-encoding the entire ISO. 4GB Files - ConsoleMods Wiki Successfully using PS3 ISO Tools with firmware 4