Some of my files are rather big - ie 180 resolution and just over 40x30 with a file size of between 3 and 4mb each, but the majority are 40x30 with a resolution of 72, bringing the file size down to between 600k-1mb. I've run files this big in v5.1 without any problems. My slide shows always last 1 hour, so I have about 20 music files. I'll have a go at reducing the size of some of my music files as one is 7mb and a couple are 5mb each. It is a complex slide show with lots of transitions - some in 3D and in quite a few cases I've utilised picture borders. However, it runs smoothly from within Pictures to Exe. As detailed in my reply to Yachtsman1, the PTE file is 3.42 mb, making an executable file of 1627.8mb. I have successfully created 2gb exe files which ran perfectly in v5.1. Linda