Unlike CD-RWs, CD-Rs cannot be erased and re-written. It is possible however, to write a new data track onto the disk. There are two methods, one which simply adds more data, which when inserted into a PC will show up as one set of data, even though it is technically two tracks. The other option is to write a new data track which disregards the old data track. In the latter example, the original data is still there, but is now being skipped over and only the new data will show when the disc is read by a PC.
To be precise, the only real way to erase a regular CD-R is to destroy the disk.
Just write over it.
try formating it
The Del or Erase command in command prompt.
Do you mean HOW TO ERASE or did they erase by themselves and you want to know why?
CDRs or CDRWs
You open the file click options and click on uninstall it will say erase all files? click yes
You must erase them by hooking it to your computer than removing the files from the library.So,next time you sink it they will be gone. :)
Save over files.
Erase
Yes
Please rephrase question. Are you trying to ask how to erase files from your computer? If so, which operating system?
No.
Delete the files or refresh the laptop.
To erase a USB memory stick, using a MAC, use the application Disk Utility. With the USB stick inserted into the USB drive, highlight that stick from the list of drives. Then select erase. It will erase all of the files on the drive and reformat it. You can also use a program called Houdini 2, which will allow you to see hidden files, move, and erase them.