Formatting Onkyo DP-S1 internal storage

[Hotteterre]

Hello everyone!
I'm embarassed, because I'm starting my presence on Head-Fi with the report of a huge foolishness of me. Some time ago I purchased an Onkyo DP-S1 Rubato, with which I'm very happy. Well, later I got two new micro-sds too, but attempting to format one of them - ehm! - I accidentally erased the internal storage of the DP-S1. I had nothing stored on it, and so I didn't lost anything, but now the player does not see it anymore. Someone knows how can help me to newly format the internal storage in order to enable the player to use it?

Thanks in advance!!!

 

[Hotteterre]

Hello again, I also wrote to Onkyo support - but without success. If anyone amongst the DP-S1 users would share some info with me, I'd try to "reconstruct" the internal memory as it originally was. What I need to know is:

• the filesystem with wich the internal storage is formatted;
• how it's partitioned;
• the names of the internal storage and of the partitions.

Thanks to all of you for the patience!