Q: How to mount/unmount CD/DVD-ROM manually, and show all hidden and associated files/folders?

1. Read General Notes

2. e.g. Assumed that /media/cdrom0/ is the location of CD/DVD-ROM

3. To mount CD/DVD-ROM

   sudo mount /media/cdrom0/ -o unhide

4. To unmount CD/DVD-ROM

   sudo umount /media/cdrom0/