The tape transport deck needs periodical service and maintenance and cleaning, which depend on their format. The quality of recording depends if the cassette DV has operational identified problems and has poor quality as output. It is suggested that we must secure the proper operating conditions of our equipment and in order to achive this we must follow the following advices as shown below:

The luck of repair, especially in the medium and long term, may causes an expensive repair.

The luck of proper cleaning with the right tools from sand, moisture and dust may causes an expensive repair.

The luck of repair has an impact in the quality of recording.

The luck of compatibility with other equipment with common specifications when playback tapes from one to another. 

It is conluded that must maintain at high quality level your equipment with periodical services in order to avoid unhappy repairs due to high cost.