Sims 2 installation help

Hello,
I need help installing The Sims 2 onto my computer. I have Mac OS X (Leopard). I have the disk, which used to work on my computer. One day, Sims would not open. I suspect there was not enough memory.
I have uninstalled the Sims 2 and tried to reinstall it (repeatedly), but when I do I get messages a few minutes into the instillation like "The Finder cannot complete the operation because some data in 'ealogo_audio.movie' could not be read or written. (Error code -36)"

Again, this program has worked on my computer before. I just can't get through the instillation process now.
Please help!