Because although I had received from my boss a few times our printouts (compared with this software very primitive software) that I would have made any errors, but only with the indication that a violation existed, I bought this software. Now I can see exactly what the problem was. Among other things, the fact that in individual vehicles tachograph installed yet, the software still work under the old statutory level of pre-2007 and share the breaks in 3x 15 minutes. If you are not careful there, you did not officially break.
The second reason was that I can save even my data now. That's good, because I did not get handed out by an employer in a dispute my data.
In addition, it also has the possibility to check his data very detailed.