2011 Lexus IS 350 Owners Manual - Page 246

3-2. Using the audio system n USB memory l Compatible devices USB memory that can be used for MP3 and WMA playback l Compatible device formats The following device formats can be used: • USB communication formats: USB2.0 FS (12 mbps) • File formats: FAT16/32 (Windows) • Correspondence class: Mass storage class MP3 and WMA files written in any format other than those listed above may not play correctly, and their file names and folder names may not be displayed correctly. Items related to standards and limitations are as follows: • Maximum directory hierarchy: 8 levels • Maximum number of folders in a device: 999 (including the root) • Maximum number of files in a device: 65025 • Maximum number of files per folder: 255 l MP3 and WMA files MP3 (MPEG Audio LAYER 3) is a standard audio compression format. Files can be compressed to approximately 1/10 of their original size using MP3 compression. WMA (Windows Media® Audio) is a Microsoft audio compression format. This format compresses audio data to a size smaller than that of the MP3 format. There is a limit to the MP3 and WMA file standards that can be used and to the media/formats on which the files are recorded. 3 Interior features 255