MikeH I purchased Switch a week or so ago and it works very well. My v ersion is the current one, but - although I note mention of the version which supports .cda files I can't find the option in my software. I'd love to know what I'm doing wrong, please
[deleted] CDA files are pointers to tracks on an Audio CD. Switch is able to convert from these (when the CD is in the CD-ROM) but not convert to. You can use Express Burn to create an Audio CD which will have CDA files.