Downloader999

I have these programs DVD Decrypter/DVD Shrink which allow me to burn DVDs but first I have to copy the entire DVD to my hard drive (7gb), shrink it to a different, smaller file (4gb) before I can burn it. So to copy 1 DVD it takes up, temporarily, 11GB! Of course I can delete these files afterwards but I was wondering if doing this over and over will ruin my hard drive because of the mechanical parts moving (head, disc, etc...). Could these ware out by the massive transfer of date? (this is an internal laptop hard drive...does that make a difference??) Any thoughts on this would be appreciated, thanx alot!!