CNF File Adjustment for too many samples

lisa scroggs wrote:

Hey, I'm observing my videotapes and we are still deciding what to do with the escape artist. But my question is, I don't think I understand the labeling of times of the files, especially the start time, for instance, for pens 30/32, start time for D1A is 10:00 which is fine, I begin observing at 10:00, then at the end, time has run out and then I start D1B and my time on the videotape is 14:15 not 14:00 like your file description says, what am I doing wrong?? (I've been typing in my real time - 14:15 as the start time in the independent variables)

Thanks, Lisa


I think that we have the time setup for a duration of 4 hours. This would make for 17 samples instead of 16, hence the extra 15 min vs what the sheet indicates. We should be able to change the LISA.CNF file to reflect this, unfortunately the key for the Observer is not working today. I have emailed them and will send you a modified version of the file when we are able to fix this.

In the meantime you can terminate the observation session on the 16th sample. The sheet is correct, there should be 4 hours between file names. Sorry about that.


Lisa :

Take a look at the time code on the new tapes. Do you remember the PVCTEST program? Which *.cnf file are you using? Also check the *.cus file, you might be using the 2 HR one instead of the 72 during filming.. I think we used a variation of the LISASCAN.CNF file that didn't have a maximum time limit. I will resend the file that I used for the last files that you sent me. You will need to " ren lisascan.cnf " at a DOS prompt at some point.

I checked the tape with PVT, and qualtest, there was no PVCTEST. Both were fine. I am using the 72hr.cus (not 72.cus) and forced to use the LISASCAN.cnf instead of the LISA2.cnf. I can't wait to get going on this, I hate when something like this happens, soon I'll be a pro at it again, it is amazing what your brain forgets when you don't use the info in a while!!

Working with shrinkage problems

Lisa: I think I figured out what has been going on. I think you have been using the EDIT program to rename the file. If this was the case then that's why you had a problem with shrinkage with the file size. The *.CNF files generated by the Observer program are binary files . These files are of a different format than an ASCII text file . EDIT is an ASCII text editor but will also open binary files at times. Did you see some strange symbols on the screen?

I didn't even think about this until now. The C:\> ren command changes the name of the file without opening the file, hence the maintenance of the file size after the renaming process. The use file size and file names was a good example of case presentation on your behalf.


Acronym for the American Standard Code for Information Interchange. Pronounced ask-ee, ASCII is a code for representing English characters as numbers, with each letter assigned a number from 0 to 127. For example, the ASCII code for uppercase M is 77. Most computers use ASCII codes to represent text, which makes it possible to transfer data from one computer to another.

Text files stored in ASCII format are sometimes called ASCII files. Text editors and word processors are usually capable of storing data in ASCII format, although ASCII format is not always the default storage format. Most data files, particularly if they contain numeric data, are not stored in ASCII format. Executable programs are never stored in ASCII format.

The standard ASCII character set uses just 7 bits for each character. There are several larger character sets that use 8 bits, which gives them 128 additional characters. The extra characters are used to represent non-English characters, graphics symbols, and mathematical symbols. Several companies and organizations have proposed extensions for these 128 characters. The DOS operating system uses a superset of ASCII called extended ASCII or high ASCII. A more universal standard is the ISO Latin 1 set of characters, which is used by many operating systems, as well as Web browsers.


Pertaining to a number system that has just two unique  digits. For most purposes, we use the decimal number system, which has ten unique digits, 0 through 9. All other numbers are then formed by combining these ten digits. Computers are based on the binary numbering system, which consists of just two unique numbers, 0 and 1. All operations that are possible in the decimal system (addition, subtraction, multiplication, division) are equally possible in the binary system.

Ok, yes I dug in the box and found the totum, it is now on top of the monitor so now good luck will come my way right?

Yes, there were really strange symbols if I opened in the EDIT program. Thanks for the definitions! So, that is why I've had shrinkage problems. Well, glad to have it figured out! Thanks Jeff


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