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-
- This program is intended to index video tape recordings keeping
- track of spare spaces, recordings that you do not want to
- overwrite and unseen recordings. The operation of the program
- should be self evident except for the following points.
-
- Two 'flags' are stored for each recording, the Hazard/Cherish
- flag and the Seen/Unseen flag. If the Cherish flag is set then
- you are not allowed to delete the recording without first setting
- the Hazard flag. The function of the Seen/Unseen flag should be
- obvious! Setting/unsetting of the flags is accomplished simply
- by clicking on the 'radio buttons' at the top of the
- window. Note that the display can be limited to only
- unseen recordings using the 'radio buttons' at the bottom left
- corner of the window.
-
- Adding a new tape to the database is achieved by choosing 'Add
- Tape' on the main menu and picking the required tape length in
- hours.
-
- The functions of the icons in the 'VideoBase' window are as
- follows: < and > step through the database forwards and
- backwards (these icons 'auto-repeat'). If the 'Show Unseen' radio
- button is on then only 'unseen' recordings will be displayed. The
- >> icon steps forward to the start of the next tape (also 'auto-
- repeat'). The << icon steps backwards to the start of the
- currently displayed tape, or if the displayed record is the first
- one on a particular tape back to the first recording on the
- previous tape. The |< and >| icons are used to reach the last and
- first recordings respectively in the database. The <<, >>, |< and
- >| icons ignore the setting of the 'Show All'/'Show Unseen' radio
- buttons. The centre icon is used to update the database when a
- record has been edited. Interactive help is now available to
- explain the functions of the icons (run the !Help application).
-
- Note that the program finds the SHORTEST available gap on the
- selected tape when you are adding a new record. This can mean
- that for example you think that a record will be added at the
- start of a tape but the program may find a shorter gap that will
- do further on. This might be confusing when you are inputting the
- end counter number for the new record. Versions 1.17 onwards
- check for this and warn you if an invalid counter number has been
- entered. When using the 'New Entry' option a gap of appropriate
- size must exist.
-
- To add a new recording use the 'Find Space' option on the main
- pop up menu which will attempt firstly to find the shortest gap
- available. If this fails overwriting a non-cherished record is
- considered, and lastly the possibility of a combination of gaps
- and deleting non-cherished records is looked at. If the search
- is successful the VideoBase window will show the gap for the
- recording, or will advise that deletions of existing records are
- required. Having found or created a gap to contain the new entry
- the 'New Entry' option on the desk pop up may be selected.
-
- Versions after 1.22 have a 'Calibration' option on the main menu.
- The purpose of this is to allow the program to calculate for you
- what the counter number will be at the end of a new recording (if
- you have not actually made the recording you will not know this
- when you are inputting the information!). The method used
- requires two sets of tape counter numbers and times which should
- preferably be as far apart as possible. For example on my
- recorder the figures for a 3 hour tape are 675 at 10 minutes and
- 6810 at 180 minutes. These will be different for different length
- tapes (and possibly different makes!). This data is saved in a
- file WVCALDATA whenever the OK icon in the calibration window is
- selected. The calculation is not 100% accurate, but should give a
- result within 50 counter units which can be ammended if required
- using the 'Edit Record' window. Do not make the second 'time'
- figure too big as the counter guessing routine can fall victim
- to a 'number too large' error (sorry about that - complaints to
- 'The Micro User'!).
-
- To create your own database just delete or rename the WVDATA and
- WVFORMAT files then run the program to create new empty files. I
- suggest that you retain the WVCALDATA file and edit it as
- appropriate. Select 'Add Tape' from the main menu and enter the
- tape length and id number, but before any entries are made it is
- important to enter the calibration figures referred to above so
- that the end counter numbers can be calculated.
-
- If you have an earlier version of VideoBase with data already
- entered, just replace the WVDATA and WVFORMAT files included with
- this version with your own ones. The data format is the same so
- there should be no problems!
-
-