It's a good question with a simple answer: there are no .CDA files on a CD. In fact, from a Windows perspective, there are no files at all. A music CD differs greatly from your hard drive or floppy disk drive in the way information is stored.Hard drives and floppy disks store data in concentric rings called tracks.t's a good question with a simple answer: there are no .CDA files on a CD. In fact, from a Windows perspective, there are no files at all. A music CD differs greatly from your hard drive or floppy disk drive in the way information is stored.
Listerâs early life. Joseph Lister was born in Upton, Essex, England, on April 5, 1827. He was the second of three children born to Joseph Jackson Lister, a very successful wine merchant and amateur scientist.
Lister used carbolic acid as a disinfectant for the surgeonâs hands, the instruments and dressings, and sprayed a mist of carbolic acid throughout the operating room. An example of the type of carbolic acid sprayer that would have been used by Sir Joseph Lister.