Increase Memory by deleting ?

Huh? You deleted a DVD? Unless it's a R/W DVD, you can't delete data on a DVD. What memory are you talking about?

 

Did you empty the trash?

 

OP: I think you're confusing hard disk space and computer memory (RAM). RAM is a hardware component, only way to get more of it is to buy chips that you stick in your computer. Hard disk space is for storage of files and data. You can find how much space you have remaining in several places, at the bottom of any Finder window, and in Disk Utility.

 

Memory:
http://en.wikipedia.org/wiki/Memory

Hard drive:
http://en.wikipedia.org/wiki/Hard_drive

 

once you send something to the trash you have to empty the trash.

The same goes for deleting files off external hard disks or flash drives, unlike in Windows where it's deleted straight away.

Im not trying to be nasty but you don't seem very computer literate. It might be an idea to look on wikipedia to find out about computer terms, or the getting started on mac pages on the apple site. That way, if you have another question to post on here, people will know what you are talking about

 

Your current free hard drive space (what you're thinking of) is shown at the bottom of all Finder windows. If you download a lot of movies and music, you could think about deleting what you don't need, or buying an external hard drive for around £60.

Music already imported into your iTunes library can be deleted by selecting the song/artist/album(s) and pressing the delete key. You'll be asked to confirm that you want to delete, then if you want to send the files to the trash. Choose to do so.

Deleted files are stored in the trash can located on the far right side of your Dock, and are available for retrieval until you empty the trash. You must do this in order to free up hard drive space. To do so, with Finder active, go to the Finder menu -> Empty Trash.