The big problem is the CD that comes with the drive. Full of PDF documents, we do not know which one to take and in the end it is useless because we do not know the reference of the received model. And especially some Chinese softs several other English mistranslated. What are they? And most compatible with Windows 7.
In the end I downloaded the app "batch v1.31t manage tool" on the website of IPCAS (another manufacturer). It works under W7 provided to run in administrator mode. It is a soft more convenient than those originally supplied. It allows to easily manage the 100 1.44MB partitions created on the USB stick.
In the end, satisfied with the player but not provided or the doc softs. Fortunately there has forums to help use.