If your Mac's CD/DVD drive is dead, you might not have to get a replacement or external drive. All you need is another Mac or Windows PC on your local network so you can remotely access its drive from your Mac.
FileDropper.com is another online file storage. The files are kept forever as long as they are being downloaded. If the files are not downloaded even once within 30 days consecutively they are removed. If you have a premium account your files are never deleted. Maximum upload is 5Mb.