Player reports ‘invalid audio’
When playing from card, the SIR and Lisa devices will send the complete audio file to the decoder, including the ID3 tags. These tags normally discarded by the audio decoder.
In case of ID3v2, the size of the tags could be quite large (upto 256MB). In case the tag is small (a few kilobytes) the decoder will not have any issues. For large tags however (think of high resolution images), the audio decoder will detect invalid audio data. This will cause the device to skip the specific entry and continue with the next in the playlist.
If you are experiencing “Invalid audio” issues while playing from card, then you should inspect your audio files for large ID3 tags. It is recommended that images are always removed. The file on the card is then replaced with the new one, without large ID3 tags.
Mp3tag (http://www.mp3tag.de/en/) is a small tool that can be used to inspect and update ID3 tags.
Lisa devices running software version 1.6 or higher will skip ID3 information without causing the device to detect invalid audio.