I have a Astone AP-110D as media streamer in my house. I bought it 1.5 years ago and upgraded the firmware to v1.75. This is still the latest released version. Everything works fine except USB disk with EXT3 file system is mounted read-only by default. I have to login to the player, umount and mount again to make the disk writeable.
Last weekend, I found that this player can use 3rd party firmwares. Hoping I can get more functions like Youtube or something. I upgraded to firmware v1.9.9 for IBT-500A / ZP-500A and IBT-1073.
Although they are different devices but seem have same firmware. Unfortunately, no new functions found. But the USB disk is now mounted writeable by default.
I'm happy with this unexpected benefit of openness.