Q!. u do know what multiple select is? where u drag a box around all of the files and folders and click ctrl+c? And paste it onto the flash drive? And google "open .iso" to see all the files in the iso! It's pretty easy now! And someone on msfn made a free program called universal extractor that can extract from tons of archives, sfx's, msi's etc. Q2. Not all formats have to have a different file extension! UDF is a type of ISO. And obviously if ur source will be above 2gbs, nlite will make it w/udf iso!! Q3. U can't mod an iso directly, u have to extract it and mod it and recreate it. Most of ur questions can be answered on google.