Hi, new owner here from the US. I bought my UDP900 last week, updated to the lastest firmware release (v886 from Jan. 6, 2025)
I hear the exact same issue with CDs.
One example is Van Halen's "Women and Children First", track 4 ("Romeo Delight"). I have the original CD pressing of the recording, this is a factory pressed CD (ie, not a CD-R or RW).
The drum one-shot at the beginning of the track is clipped no matter what player setting I tried. I also tried listening from the ripped track in FLAC and WAV format on a USB stick plugged into the front panel. In my test I was listening from off the unit's stereo outputs to my integrated amp and then tried the front headphone jack of the UDP900. All miss the opening drum; I even played around with the different audio filter settings, zero effect, the drum is missing. No matter what I tried, the UDP900 misses the start of the file.
I played the same CD on my computer's CD/DVD burner, then on my old Sony X55ES cd player. In those cases the one-shot is heard without issues (I used foobar2000 on my PC). When I listen to the ripped FLAC and WAV files on my computer off that same USB stick, I again hear the kick drum
So it's not the data nor the CD I used, it's the UDP900 that is at fault. I can't say if this also is an issue with SACD and/or DVD-A discs but since FLAC/WAV files do the same thing it likely is an issue with them too.
