Further update to the previous tests

I now rescanned the same file using a trial version of MP3Test.

This is interesting becuase MP3Test agrees with MP3Utility on the number of mpeg frames in the test subject mp3
MP3Test also agrees with MP3Checker that there is error, but where as MP3Checker reported Invalid frames 5% error, MP3Test only reported 0.04% error.

These are the error check reports by all three programs:

MP3 Checker: 19138 frames verified. Invalid frames 5% [10] Repeated frames 14% [9]
MP3Utility: No errors found. 19238 frames processed (0 padded, 10238 unpadded), Bitrate is variable.
MP3Test: First Frame Invalid.  Resync: 2172 Bytes as 0:00 (0% through).  Frames:19238.  Errors: 1 (0.04%)

I would conclude from these results it is likely that MP3Checker is wrongly caculating the number of frames in the test mp3 (as the other two programs agree on 19238 frames)
I would also conclude that MP3Checker is correctly reporting that there is invalid frame error(s) but only further testing will show whether or not is correct in reporting 5% error, it is unfortunate that MP3Checker does not report which frame(s) it has found to be invalid.
Also with MP3Checker I am unclear as to what the bracket number means : Invalid Frames 5% [10]  is the 10 an error code or the number of frames believed to be invalid ? As 5% of 19238 frames is a lot more than 10 I would be inclined to believe 10 is an error code# but I can't find a description in any documentation to verify this.

Some more feedback.

I encoded some mp3's using Foobar v0.9.6 and Lame v398.2 set at 245 V0
I decided to check them for errors using both these utilities and I recieved different results from each.

After scanning the same file with the two utilities these were the results from the two Utilities

MP3 Checker: 19138 frames verified. Invalid frames 5% [10] Repeated frames 14% [9]
MP3Utility: No errors found. 19238 frames processed (0 padded, 10238 unpadded), Bitrate is variable.

So as the two utilites report a different number of frames in the same file and one reports errors while the other does not, the question is, which of the two is the reliable one.