Cora tries to force Mara's avatar into the freezing water (i.e., force her computer to bluescreen). But Mara does something unexpected: she into the simulation. A void. A white page.
On the Internet Archive, the audio collection related to Titanic is a fascinating museum of audio formats. You can find the motion picture soundtrack uploaded in FLAC (lossless) quality for audiophiles, but also fascinating relics of the early internet. There are "MIDI" versions of the score—synthetic, tinny computer renditions that were ubiquitous on Geocities websites in the late 90s. titanic 1997 internet archive
It answers the question: