Panasonic DMR-UX4050 Blu-ray recorder. ★★Something is broken.★★ The symptom is block noise appears during playback of recorded programs. It doesn't happen all the time, and I have no idea when it will occur. I was able to transfer the data remaining on the hard drive to another recorder, so the data itself seems to be written without problems, but there is a problem when playing it back, or perhaps there is an irreplaceable area on the hard drive, I don't know the details. I think the tuner and Blu-ray disc are fine, but if the playback part fails, there is a possibility that block noise will appear in the same way. At least, as far as I've used it so far, that seems to be okay. Other than that, it basically works, but the problem of block noise occurs, so I have no idea if it includes a malfunction. Please understand this point. The included items are only the antenna cable, remote control, and power cable. The manual will be included if found before shipping, but it has not been found at present. Although my memory is uncertain, I don't think I have modified it, such as replacing the hard drive inside. I remember that DIGA was difficult to do that, so I don't think I did it. However, please understand that point even if I did. Regarding shipping, I will reuse the box of the newly purchased recorder. Please do not be disappointed just by looking at the box. Please purchase after understanding the above. - Model name: DMR-UX4050 - Brand: Panasonic HDD capacity...4TB