The present invention relates to a method of recording and reproducing
sample data to/from a recording medium and a sample data containing
recording medium. According to the present invention, contents are
recorded on a recording medium with additional sample data which is a
part of the contents. And, when the contents of the recording medium are
requested to be reproduced, the sample data or all the contents are
reproduced based on whether a reproduction approval key is received or
not. Owing to the present invention, a user can confirm easily, without
purchasing a corresponding reproduction approval key, whether a recording
medium such as a DVD-ROM and a DVD-RAM has contents he or she wants.