Opus at 128 kbps (VBR) is considered transparent to most listeners, meaning it is indistinguishable from the original source. A "fullrip" at 256 kbps or higher is virtually indistinguishable even to trained ears.
To understand the value of an Opus fullrip, it is necessary to compare it with industry-standard formats. Transparency Target (Stereo) Efficiency Best Use Case ~128–192 kbps Music Streaming, Archiving AAC (LC) ~192–256 kbps General Streaming (Apple) MP3 ~256–320 kbps Legacy Device Compatibility FLAC N/A (Lossless) High-Res Archiving Opus vs. MP3 opus fullrip