MKV with low brightness problem

[DVDLover00]

Hi to all. I have an 23min mkv, with 720x576 res. The brightness is so dark, I cant see a thing. I tried to fix it with
some VLC settings, but gets worse than the original. Here is some pics:

[Attachment 70183 - Click to enlarge]

[Attachment 70184 - Click to enlarge]

[Attachment 70185 - Click to enlarge]
If it possible, I want to convert it without losing the quality and sound, but with more brightness and clean resolution.
The generic video info;

Duration                    00:23:00 (1379.8 s)
Container                   matroska
Total tracks                2
Track nr. 1                 video (V_MS/VFW/FOURCC) {und}
Track nr. 2                 audio (A_PCM/INT/LIT) {und}
Muxing library              Lavf56.31.102
Writing application         Lavf56.31.102

Video track

Codec ID                    V_MS/VFW/FOURCC
Resolution                  720 x 576
Display resolution          768 x 576 (pixels)
Frame aspect ratio          5:4 = 1.25
Pixel aspect ratio          16:15 = 1.066667
Display aspect ratio        4:3 = 1.333333
Framerate                   25 fps