Reconnecting the USB Device
When you disconnect a USB device, the data for the track order remains in the audio-navigation unit's memory so when you reconnect the same USB device, the audio-navigation unit continues playing from the location where it was disconnected. If a new USB device is connected, the data for the track order is rewritten and you need to select the album or music file.
USB DEVICE TABLE
| - | Item | Specifications | Remarks |
| MP3 | Supported Standards | MPEG1 Audio Layer3 | - |
| MPEG2 Audio LSF Layer3 | - | ||
| Supported extensions | .mp3/.MP3 | Half-size character only | |
| Sampling frequency (kHz) | 32/44.1/48 | MPEG1 | |
| 16/22.05/24 | MPEG2 | ||
| Bit rate (kbps) | 32/40/48/56/64/80/96/112/128/160/192/224/256/320/VBR | MPEG1 | |
| 8/16/24/32/40/48/56/64/80/96/112/128/144/160/VBR | MPEG2 | ||
| Supported tag | ID3v2 (v2.2/v2.3/v2.4) | Prioritize v2 over v1 No guarantee for asynchronous tag | |
| ID3v1 (v1.0/v1.1) | |||
| Tag information | Title/Artist/Album | - | |
| Max. Tag character count | Max. 64 Byte | ID3v1: Max. 30 Byte | |
| Partition | Top partition only | - | |
| Max. layers | 8 | - | |
| WMA | Supported standards | WMA Ver7/8/9 | - |
| Supported extensions | .wma/.WMA | Half-size character only | |
| DRM file | Unsupported | Count as a number of files | |
| Sampling frequency (kHz) | 32/44.1/48 | - | |
| Bit rate (kbps) | 48 - 320/VBR (Peak 384) | - | |
| Supported tag | WMA TAG | - | |
| Tag information | Title/Artist/Album | - | |
| Max. Tag character count | Max. 64 Byte | - | |
| Partition | Top partition | - | |
| Max. layers | 8 | - | |
| AAC | Supported Standards | MPEG4/AAC LC | Only the file encoded with iTunes |
| MPEG2/AAC LC | |||
| Supported extensions | .m4a/.M4A | Half-size character only | |
| DRM file | Unsupported | No count as a number of files | |
| Sampling frequency (kHz) | 8/11.025/12/16/22.05/24/32/44.1/48 | - | |
| Bit rate (kbps) | 8 - 320 | No guarantee for VBR file | |
| Supported tag | MPEG-4 header | Prioritize over ID3 tag | |
| ID3v1/v2 | Same as MP3 | ||
| Tag information | Title/Artist/Album | - | |
| Max. Tag character count | Max. 64 Byte | ID3v1: Max. 30 Byte | |
| Partition | Top partition only | - | |
| Max. layers | 8 | - |