Aiwa MM-RX400 operating instructions Specifications, General questions, What is MP3?, What is WMA?

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APPENDIX

Specifications

Storage media Built-in 32MB Flash Memory MultiMediaCard slot for a removable 16MB, 32MB or 64MB MultiMediaCard

Maximum output level

5 mW + 5 mW (32 ohms)

Frequency range

20 Hz – 20 kHz

FM tuner US: 87.5 MHz – 108.1 MHz (200 kHz steps)

EU: 87.5 MHz – 108.0 MHz (50 kHz steps)

Power supply 1.2 V DC using the supplied MHB-901 Ni-MH rechargeable battery

Continuous playing time with a fully charged battery

Approx. 5 hours for

MP3/WMA play

Display Graphic LCD (69 ⋅ 32 dots) PC interface USB cable

Maximum outside dimensions

41.6mm (W) ⋅ 90.5 mm (H) ⋅ 22.8 mm (D) (not including projecting parts and controls)

Weight	Approx. 72 g without battery
Accessories	USB cable (1)
	Battery charger (1)
	Rechargeable battery (1)
	32MB MultiMediaCard (1)
	Installation CD-ROM (1)
	Remote control (1)
	Stereo headphones (1 set)
	Carrying case (1)

*Player specifications and external appearance are subject to change without notice.

Frequently asked questions

General questions

What is MP3?

MPEG-1 Audio Layer 3, one of most popular audio formats. It compresses standard audio tracks into much smaller sizes without significantly compromising sound quality. Since the MP3 file format has no mechanism for copyright protection, it is not widely used by commercial music data distribution sites.

What is WMA?

Windows Media Audio is an audio format developed by Microsoft Corporation in order to distribute CD-quality music even via low-speed communication lines such as ISDN. WMA employs a more efficient compression method than MP3, and has the advantage of reducing the bit rate with the least loss of sound quality (80 kbps encoding results in almost the same sound quality as MP3 encoded at 128 kbps). WMA is a format suitable for portable players with limited memory. WMA also provides the mechanism that allows music files to contain encrypted data such as copyright-protection information in them in combination with Windows Media Rights Manager.

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Contents MM-RX400 English Precautions Table of Contents Using the MM-RX400 Player Main featuresStereo headphones Battery charger Rechargeable battery AccessoriesAbout this manual System requirementsHardware requirements Software requirementsViewing Help Searching by KeywordClick on the Index tab in the Online Help window Tip EnglishBefore starting the installation Installing the Audio Manager and driver softwareClick on Finish in the Installation Complete dialog box Default playerClick on Next Location from the ChoosePreparation Installing the battery Charging the batteryBattery indicator Preparing the MM-RX400 playerInstalling a MultiMediaCard Formatting a MultiMediaCardTo remove the MultiMediaCard Connecting the MM-RX400 player to your computer Installing the USB driver Disconnecting the MM-RX400 playerClick on Finish Confirming installation of the USB driverSwitching between the Audio Manager window and small player Starting Audio ManagerTo exit Audio Manager Changing the appearance of the Audio Manager window Audio Manager window Identification of Audio Manager controls1Menu bar Audio Manager navigation buttons Make a playlist buttonWrite audio cd button Copy to devices buttonRead a cd button Go to web buttonRead a CD window Recording tracks from a music CD1Read a CD button bar Button Read a CD Track listBefore starting Recording tracksBit Rate Click on the Edit Track Info button Click on OK Click on the Start Reading buttonObtaining track information about a music CD automatically Check the Save this file to disk option and click on OK Obtaining music files via the InternetClick on OK in the dialog box Organizing tracks using play list Play List windowAdd Tracks to the Play List button bar Button 3Organize the Play List button bar Button 2Play ListCreating a play list Click on the Save Tracks as Playlist button Click on OK when you have finished selecting the tracksClick on Search Hard Disks for Tracks of the File menu If you know where the music files are storedClick on OK in the dialog box that appears successively Click on the Select Playlists From Database buttonClick on the Add Track button under the Track List tab Deleting tracks from your database Deleting tracks and play lists from your databaseDeleting play lists from your database Playing the tracks in the play list Editing track informationPlaying the tracks on the music CD Click on the Clear List button to clear the Play ListShortcut menus Transferring tracks to the MM-RX400 player Copy to Devices window1Devices window button bar Button 3Organize the Transfer List button bar Button 2Transfer List4Memory media drop-down list 5Device Usage bar7Portable Track List button bar Button Transferring tracks to the MM-RX400 playerClick on Close to close the dialog box Using Audio Manager Deleting tracks from the memory media Viewing current memory usage status of the memory mediaFormatting the internal Flash Memory and MultiMediaCard Main unit Player overview7FM MODE/DISPLAY switch 6VOLUME +/- button8AUTO PRESET/DTP button Display window \Headphones jack stereo mini- jackRemote control Display window During playbackDuring radio reception Playing back tracks Using the playerTo cancel A-B Repeat Playback Selecting a play modeTrack repeatedly A-B Repeat PlaybackChanging the track To suit tracks InformationTo show Listening to a radio program Manual Tuning To tune in to a station quickly Auto Tuning For better receptionIf stereo reception is poor Listening to a preset station To preset two or more stationsTo erase all preset stations What is MP3? SpecificationsWhat is WMA? General questionsWhat is a variable bit rate VBR? What is the bit rate?What is the CDDB? What is SDMI?Volume level differs among tracks How long does the battery last?Questions about MM-RX400 player How do I expand the memory?Buttons are not functional TroubleshootingNothing or unusual action on the display Various troubles with playbackThem with an appropriate bit rate and sampling frequency MM-RX400 player does not play tracksCannot transfer music files Your computer does not recognize the MM-RX400 playerYou cannot tune in to any station Reception is distorted or has a humDisplay Description MessagesCall toll free 1-800-BUY-AIWA. United States and Puerto Rico