Just to update, I did split the file and found a possible problem near the place the program stops. I haven't been able to find the exact cause, but there is an abnormality in the file where the date suddenly changes from May 4 to June 27. Even more perplexing is that the file my program creates ends at May 5. Anyway,I managed to pull the rest of the data from the file, and it looks like I'm just going to consider the end of the log corrupted and innacurate and leave it at that. Thanks for all the help!