Michael (SeaGtGruff) is correct. The sampling feature on the Casio CTK-5000 (and related models) is intended primarily for sampling your own audio data from a radio, or CD player, or MP3 player, or "cassette player or turntable" (whatever those are ! ! !), etc. See the cabling diagram on Page E-17 of the manual. You can also resample and edit any of the onboard (preset) drum kits. However, audio samples can be saved to the SD Card as TW7 (Tone with Wave) files, and drum kit re-samples can be saved to the SD Card as DW7 (Drum with Wave) files. The TW7 and DW7 files can then be transferred to a PC or laptop's hard drive with the Data Management 5.0 software. This means that, " I F " you were able to find/download Casio TW7 or DW7 files from any source, you "should" be able to download and copy them to the MUSICDAT folder on the SD Card and load them into the CTK-5000's User Memory, BUT to my knowledge, neither Casio, nor any other tone/voice vendors have ever made these types of files commercially available. At one time, Casio did offer free aftermarket Z06 (Tone with Wave) and Z03 (Drum with Wave) file downloads in a self-extracting CKF format for the older WK-3XXX and their corresponding CTK models, but because the sound engines of the newer models were so drastically different, these old file formats are not at all compatible with the newer CTK-4XXX/5XXX or CTK/WK-6XXX/7XXX models. It is really too bad that Casio did not carry that aftermarket support over to the new models, but that certainly does not prevent users from sharing their own TW7 and DW7 files for the CTK-4XXX/5XXX and related models. Even so, since the CTK/WK-6XXX/7XXX models have no sampling capabilites at all, they would not be able to partake in this "sharing".