36• The player can recognise the following files orfolders in BDs, DVDs, CDs and USB devices:– up to folders in the 3rd tree– up to 500 files in a single tree• The player can recognise the following files orfolders stored in the DLNA server:– up to folders in the 18th tree– up to 999 files in a single tree• Some USB devices may not work with thisplayer.• The player can recognise Mass Storage Class(MSC) devices (such as flash memory or anHDD), Still Image Capture Device (SICD) classdevices and 101 keyboard (front USB jack only).• To avoid data corruption or damage to the USBmemory or devices, turn the player off whenconnecting or removing the USB memory ordevices.• The player may not play high bit rate video fileson DATA CDs smoothly. You are recommendedto play such files using DATA DVDs.Since communication via the wireless LANfunction is established by radio waves, thewireless signal may be susceptible tointerception. To protect wirelesscommunication, this player supports varioussecurity functions. Be sure to correctlyconfigure the security settings in accordancewith your network environment.No SecurityAlthough you can easily make settings,anyone can intercept wirelesscommunication or intrude into your wirelessnetwork, even without any sophisticatedtools. Keep in mind that there is a risk ofunauthorized access or interception of data.WEPWEP applies security to communications toprevent outsiders from interceptingcommunications or intruding into yourwireless network. WEP is a legacy securitytechnology that enables older devices, whichdo not support TKIP/AES, to be connected.WPA-PSK (TKIP), WPA2-PSK (TKIP)TKIP is a security technology developed tocorrect for the deficiencies of WEP. TKIPassures a higher security level than WEP.WPA-PSK (AES), WPA2-PSK (AES)AES is a security technology that uses anadvanced security method that is distinctfrom WEP and TKIP.AES assures a higher security level thanWEP or TKIP.• To keep the disc clean, handle the disc by its edge.Do not touch the surface.Dust, fingerprints, or scratches on the disc maycause it to malfunction.• Do not expose the disc to direct sunlight or heatsources such as hot air ducts, or leave it in a carparked in direct sunlight as the temperature mayrise considerably inside the car.• After playing, store the disc in its case.• Clean the disc with a cleaning cloth. Wipe thedisc from the centre out.• Do not use solvents such as benzine, thinner,commercially available disc/lens cleaners, oranti-static spray intended for vinyl LPs.• If you have printed the disc’s label, dry the labelbefore playing.• Do not use the following discs.– A lens cleaning disc.– A disc that has a non-standard shape (e.g., card,heart).– A disc with a label or sticker on it.– A disc that has cellophane tape or stickeradhesive on it.• Do not resurface the playing side of a disc toremove surface scratches.About wireless LAN securityNotes About the Discs