Error with title in playlist

Hello!

First of all, I want to thank you for Moc.
It's a my favorite linux player ^_^.

Here my problem:

With my config file, I save my current playlist everytime I quit.

If I launch moc with this command in my Eterm:
mocp -p

The first line of the playlist is modified.
The title disappear and some numbers replace it.
Everytime I relaunch moc, another line is replace by numbers...

Here a screenshot with three errors:

I made some test and if I erase ~/.moc/tags_cache and ~/.moc/playlist.m3u it return to normal.

Here some info:

shaika-dzari:$ mocp --version
moc DEVEL Build: Jan 6 2006 04:02:23
Compiled with: OSS ALSA DEBUG resample

shaika-dzari:$ mocp -p --debug
Loading plugins from /usr/local/lib/moc/decoder_plugins...
Loading plugin libffmpeg_decoder...
OK
Loading plugin libflac_decoder...
OK
Loading plugin libmp3_decoder...
OK
Loading plugin libmusepack_decoder...
OK
Loading plugin libsndfile_formats_decoder...
OK
Loading plugin libspeex_decoder...
OK
Loading plugin libvorbis_decoder...
OK
Running the server...
Trying ALSA...

I run on Archlinux 0.7.1, kernel 2.6.13-arch, gcc 4.0.3, libid3tag 0.15.1b-2.
I make a archlinux package with ABS (Arch build System) and with this option to configure:
./configure --without-jack --without-curl

If you need more information, tell me.
Thank you very much.

@+

P.S. I usally speaking french so tell me if I am not clear. :-)